That vignette of Fruit also appears on this one:
The first one is a puzzler, though. I've never seen it before. I wonder if the engraving was done on spec by National Bank Note Co. in anticipation of getting a contract to print some of these large taxpaid revenues.
ADDENDUM: Southpaw, do any of those proofs have blue serial numbers on the back? That would indicate they were working proofs, rather than final products sold to the public.