This is one of my favorite floats. There's a lot of good things happening in float.

First, it has a perfect stamp of WP #289 mark.  This mark appears to be a variation of the Tokui 特 symbol.  Walt Pich states that this is an older mark and this float definitely looks old. 

Next, it has a side spindle that spirals around the float.  There are also lots of swirls in the glass. 

Then, the float has a crude construction that makes it a little out-of-round and it has tons of bubbles. 

Finally, this float is 5 inches in diameter which makes it excellent for displaying.

It has solid provenance having come from the ex-Ramon Fulton collection.