This
is one of the rarest mechanical bank cards; fewer than ten
examples are known to exist in ANY condition. Oddly enough,
the bank itself is relatively common, and in fact today the
Trick Dog trade card is more valuable than the bank it
advertised! It's
really a shame that this card, issued in 1888, is unsigned.
It has much in common with the Mason and Picture Gallery
cards printed by G. H. Dunston, though, so this may actually
be an unsigned Dunston effort. It's shown here at 85 percent
of full size.