Glass Float Junkie: Glass Float 101: Is it the REAL deal or a FAKE???
Authentic Japanese Glass Fishing Floats were made between 1910 and 1980. They were used to float nets and mark traps, and many are still in use today.
Beach-combed Blown Glass Float Balls, 4 diam. (vintage)
Glass Fishing Floats - Information ~ Summary & Background
Glass Float in Blue Net
for the love of a house: vintage japanese glass fishing floats
Japanese Large Glass Fishing Float Ball Vtg Blue Boat Buoy With Net BD, Online Shop
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The Glass Floats – Beachcombing Magazine