Double Bubble float with an opening in the seal.  The inner ball measures 3/4 inches across. 

This float has faint amber swirls throughout that gives it an unusual amber cast. 

The glass also has a lot of swirling to create a wonder texture effect. 

The float measures about 6 wide and was found in northern Japan.

This float has excellent provenance having come from the ex-Ramon Fulton collection.