The Glass Floats

Glass Floats

By Mary Beth Beuke

“Out there in the North Pacific right now, riding the waves of the great Kuroshio Current, are hundreds of thousands of desirable floats just waiting to be driven ashore somewhere…”
-Amos Wood, 1967

Those words were written over 50 years ago. Today, even the most serious beach combers have discovered that it is extremely unlikely they will ever find a genuine glass fishing float along most of the world’s shorelines. Even the glass loving collector may not be totally familiar with these ocean colored orbs. Today if one is found, it is likely on a Pacific Northwest coast shore or in an antique gift shop’s nautical section.

What is a glass fishing float?

In the most elemental sense, a glass fishing float is an air-filled, closed glass container used to create buoyancy for fishermen’s nets. Usually a glass fishing float is round in form but they were blown into various shapes and sizes, from as large as a standard beach ball size to as small as a kiwi fruit. The hollow spheres were used on ocean waters to support larger scale commercial fishing nets, (often with many individual fishing nets strung together, sometimes for several miles), and to keep the nets from sinking.  The most common manner in which the floats were utilized was as a strung-together band along the tops of the fishing nets, keeping the net edge buoyant along the water’s surface.

Glass float showing lines where netting once held it in placeTrue vintage glass fishing floats were made in glass factories or blown by hand, usually into a spherical shape, then sealed with a blob “button” of molten glass. There are other shapes of glass floats too; torpedo shape, rolling pin shape, bottle shaped, and double sphere style.

Where were glass floats made and who used them?

Rolling pin style glass float from Vancouver IslandMost floats that have been found along the world’s shores show clear markings that can be traced back to Japan, Korea, Russia, Taiwan, China, North America and Norway. And many floats can show weathered away markings or a surface that doesn’t display any such maker markings at all. Some may still have tell-tale characteristics like seams, color, glass thickness and the personal nuances of the glass maker that help to define origin, the factory name or locale or even a specific maker.

For the sake of clarity, I define a glass fishing float as the historical, handblown or machine-made floats used for nautical buoyancy and fishing gear.

Modern glass float set afloat off OregonIn contrast there are presently contemporary glass “balls” that are created as a curio, decorative piece to imitate the beauty and nostalgia of genuine, vintage glass floats. Even today, some glass artists set their modern pieces afloat for beachcombing contests and tourism purposes.

There is some terminology to watch for that will help especially as one looks for float information or to purchase. The words “tiki décor”, “nautical replica”, and my favorite “vintage style” are usually a clear sign that the piece is an imitation. I’m not exactly sure what the latter phrase means other than that the item is “similar to something old”.

Glass fishing floatBack to real history! A few years after I’d become immersed in the sea glass world and was often speaking at beachcombers’ conferences, a friend gifted a well-used book to me. It is a signed, first edition by author Amos Wood, “Beachcombing for Japanese Glass Floats” dated 1967! Many agree that this relic is the original, professional work on glass float info. It is serendipitously inscribed to the couple Mr. Wood initially gave it to one Saturday night soon after the book was freshly printed and published.

“With Best Wishes to Jean and Tom Curry!
On occasion of a delightful dinner and evening conversation.
Amos L. Wood
Mercer Island, Wash.
November 23, 1968”

The book is the treasure trove of rich history and photos coupled with personal visits with the beachcombers of extraordinary floats from the 1940s through the late ‘60s. Most of the specimens are finds from locations all up and down the Pacific Northwest coast; beaches that I’ve personally traversed myself over a lifetime of coastal trekking.

How Long have Glass Floats been around?

Though some historians believe glass floats were being used in Scandinavia long before the 1840s, there is only actual evidence pulled from references in Norwegian glassverks production records dating to as early as 1842. It was believed that cod fishermen found the floats useful to keeping their great gill nets buoyant. Japan apparently started using the glass floats as early as 1910 however, but within only a 30-year span, much of the glass made floats would be replaced by wood or cork, especially by the larger commercial fishing outfits. This does not mean that glass float production has ceased; in fact, ecologically speaking, glass is still one of the safest man-made products on our seas.

Check out Tina Terry's collection of floats from the Pacific Ocean

How can I find a real glass fishing float today?

That’s the question the collector in all of us tends to ask. Where do I go? When do I go? How much can I count on finding? It’s becoming evident that even though fishing floats have been manufactured and utilized in many countries around the globe, they are exponentially more difficult to find than they were in the 50’s, 60’s and 70’s. In fact, every time I show our floats and visit with attendees at an art fair or conference, I consistently hear statements like “Oh wow, I remember my grandfather found some of these when I was a kid. He had them stored in their garage/garden/attic/windowsill.” Unfortunately, they are not so easy to find any more.

Just like sea glass, the best time to look for anything washed up along a coastline is:

  1. After a strong storm and especially just after strong onshore winds have hit.
  2. It’s wisest to educate oneself on how to read a tide chart and check it before heading out.
  3. Venture out so that you reach your destination just as the earliest outgoing tide of the day is just beginning to retreat.
  4. Always search along the incoming wave line for newly landed floats.
  5. But also make a concentrated effort to negotiate the top/high tideline on the beach as the hollow glass balls can get cast up onto the beach in amongst the driftwood, other debris, and derelict fishing and boating gear.
  6. Make a note reference and log your find, especially with a date and location. What else should I watch for?

Floats with their original netting still tied to the piece are fascinating. Usually the rope netting, unlike glass, is quicker to biodegrade in the salty and constantly moving ocean. So, locating a float with netting still attached is highly valued to some. Pay attention to the netting. Sometimes sand, seaweed, seagull feathers and occasionally barnacles that have hitched a ride can be holding on to the roping. If the netting is gone, you may see a net “shadow” where it once crisscrossed the face of the orb thus slightly protecting it from the frosting and sanding of nature’s elements.

Glass float with bubblesFloats with many bubbles are also a favorite. Bubbles suspended within the solid glass wall of the floats can be both beautiful and a clue to dating the age of the float. Bubbles occur in all glass but are more common in old glass. In machine made glass, the molten glass is mixed more uniformly and injected into float molds causing fewer bubbles to form.

Though my 50-year old vintage book causes me to hope that there are still “thousands” of glass floats to be found intact today, I must remind myself that it’s been 8 years since I’ve found a single float. However, I cannot possibly stop looking.

Beachcombing for Japanese Glass Floats, Amos L. Wood, 1967
Coxsackie Antique Center – Recognizing Old Glass.
The West Coast Sea Glass collection of floats

Learn more about floats

articles and information about glass fishing floats found on the beach

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This article appeared in the Glassing Magazine November 2017 issue.


While 20 miles off the coast of Louisiana in 1976, I noticed a shiny blue glass ball in the waves. It’s blue and heavy. The netting is still tarred and made to last. The underside was coated with limpets growing on it. Soon washed off. It still sits in our living room.

Mikey September 01, 2023

We just found one bubbles and all in the sand along the San Jacinto river in Kingwood, Texas. Curiosity of its purpose brought me to this site. A hurricane must have pushed it up river?

Daymond Seay August 15, 2023

That’s a great find, Lysa! The combination of years in the water and tiny imperfections in the glass means water can slowly seep into the float. Yours must be very old!

Kirsti October 14, 2022

Hello I have a Japanese class bully, net is intact. There is about a tablespoon or two of water inside. I’m interested how rare this might be

Lysa Maher October 14, 2022

I found a dark green glass float {5 inch} near San Luis Pass – west of Galveston, TX on July 3, 2021.

I was so excited – I didn’t think the Texas coast would have something like that.

but that is why we beachcomb – you never know!!

Laura Mullen May 27, 2022

I found a glass float at the beach in pacific city oregon and originally I thought it was from the glass blowers because they hide them on the beach. After after doing research I realize it is from Japan.

Grace May 30, 2021

Just found our first glass ball on the northern (eastern) coast of Eleuthera, Bahamas. Appears to be 4”, green, with the net still attached.

Bill Landers April 07, 2021

This afternoon around 2pm I saw a Floater in the waves. At first I thought it was blue fishing floater. As the waves brought it to shore I realized it was a Green Glass Fishing Floater a bit larger than a basketball. Brillant green…. need to wash to see if there are any bubbles or markings. Also, same day found a Brillant red Light bulb. Both look like they have been at Sea for sometime. Actually we found several Fishing floaters but only one glass one. My first Glass Fishing Floater.

RoseMarie Robles March 28, 2021

I have a vintage old scuffed ocean float with two markings on them not sure if it’s Japan, Taiwan, China or Korean it’s only 2” glass round float but I can see the markings still on the bottom. Can anyone help identify where it is actually from?

Linda March 23, 2021


I have pick up several thousand floats along the Alaska Peninsula on the Bering Sea side.
Fresh floats, just in with the tide are always a great find, I found the largest number of floats at the mean mean high tide mark where winter tides carried the floats far inland.
I have noticed floats like ocean foam comes to rest on the beach generally at the same locations.
On the west coast of the USA continual westerly winds (three days +-) will bring floats, when the small jelly fish began to wash up on the beach so do the floats.

Jack Johnson November 13, 2020

My family found a large glass ball with a sound, tightly woven net in the late 1960’s. It has an inch or so of water inside that has never diminished nor fogged the ball. We were informed the water was blessed when the fleet started. I’m trying to research, but am stuck. Have you ever seen such a ball?

Robin October 08, 2020

I have 3 glass balls that my 91 year old brother brought back from Korea. What is their worth?

Linda August 03, 2020

I have 2 glass bqll and it still has net on it

Umi Akahi-pua June 01, 2020

I have 2 glass bqll and it still has net on it

Umi Akahi-pua June 01, 2020

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