N-1 Deck Jacket Stencil

I'm trying to get my hands on a stencil for 40's USN Deck Jacket.

I've done plenty of research (ok, about 30 mins on't net) but bar one Rubber Stamp on ebay have drawn a blank, even Mash came up with empty.

So does anyone know where I may find the "USN" stencil to go on the front of a Khaki Deck Jacket?

Cheers,

Steve