Fantastic example of a Doughnut Jumbo Roller.

The name 'Doughnut' would seem to originate because of the broad width of the collars (i.e. two grooves) and the inflated doughnut shaped ears (i.e. knobs at the ends).

This Jumbo Roller is quite large measuring 20 inches in length and 8 inches in diameter.

Doughnut Jumbos are very rare and are highly collectible.

What makes this particular float really extraordinary is that it has a maker's mark on an ID seal.  The mark is WP #7 Se セ (also known as Otaru T).  It is a rather large bold rendering on the Se symbol; almost an inch wide.  I showed this Doughnut Jumbo to Walt Pich and he told me he couldn't remember seeing another Doughnut Jumbo with an ID seal on the non-seal button end stamped with a large Se symbol.  It's great knowing that this is such a special float!

It seems possible that this Doughnut Jumbo was produced in Otaru, Japan.

This float has excellent provenance having come from the ex-Jim Watson collection.