Anyone know what this is?

[Tallcoldbottle]

 

[Mailman1960]

View attachment 239474

I take it that's the bottom of it, if there's a hole in it probably for ink.

 

[willong]

Fishing net float would be my guess. Most are spherical or elongated egg shape; but cubes were also used if linked site has correct info: https://picclick.com/Seven-Vintage-Japanese-Square-Cube-Glass-Curio-Fish-112772459107.html

 

[Tallcoldbottle]

It looks like you are correct, thank you for the info.

 

[Tom Rizzo]

Wanted to let you know that these square floats are not authentic fishing floats, although it is possible that someone may have used them on a net or line. These floats were made sometime during the 1960's and afterward for decoration. There is a story that they were made for Macy's, but I've never been able to prove that. I've written an online blog called The Sea Hermit Blog. Perhaps going there to read those stories will be helpful and illuminating to anyone who is interested in Glass Fishing Floats?