Nice bold stamp of WP #24 'Shi' シ (aka smiley face) but this one is in a circle, so I assume that makes it Maru Shi.
This is a 5 inch float that looks pretty old with tons of bubbles and a cruder construction than you see on newer floats.
WP #24, Maru Shi シ, 5 Inch
Written by Keith Glein
Additional Info
- Maker's Mark: WP #24 - Shi シ or Smiley Face
- Shape: Glass Ball
- Color: Light Green
- Size: 5 Inch
- Rarity: Common Maker's Mark
- Manufacturer: Shimamura Glass Co.
- Country of Origin: Japan
- ID (optional): 2009-05-20-01 Glass Float Museum
- Retail Value ($): 75
- eBay Auction ($): 50