This is a Japanese glass fishing float. It is a beautiful sky blue color and has a makers mark (see photos). It is made of hand blown glass. This
Fishing Nets & Floats, Maritime, Antiques - PicClick
News Berry Campbell Gallery
Vtg Japanese Glass Fishing Float.. Net, Sky Blue & Rare Kanji Makers Mark (#9)
3 Unique Vintage Japanese GLASS FISHING FLOATS Net, Rolling Pin & Clear W/bubbles 46 - UK
Glass Antique Original Antique Fishing Floats for sale
3 Marked Kanji symbol Japanese Fishing balls Japanese marked glass floats authentic Hand Blown Saki bottle glass
Authentic Japanese Glass Fishing Net Float
Travel INSPIRED 55+ Lifestyle Magazine
Vintage Japanese GLASS FISHING FLOAT.. Makers Mark, Bubbles & Stains 23 - Canada