Really nice bold stamp of WP #53 'Gan' 元 under a Roof mark.  It's a rare maker's mark per Walt Pich's Marks book. 

This is a 3" float has a couple of chips on the sealing button.

The swirling in the glass and tons of bubbles adds character to this float. 

A great display float; I've got it in the front row.

This float has excellent provenance having come from the ex-Col. Rich Richardson collection.