E13 15c Motorcycle, single tied by rare unofficial New York, Madison Square Sta., NY hand cancel, rubber stamped address to G.C. Rheinfrank "Stamps for Collectors", Chicago, IL. with Chicago, IL. precancelled 2c Postage Due on cover as well. The same cover we sold back in 1996 for a then $1,150.00 (including premium). The only unofficial E13 we have sold, ever, for any unofficial for this issue, possibly unique! (Image)

Est. $1,200-1,500