In 1939 Batman made his first appearance in issue #27 of Detective Comics. To mark the 80th birthday of the masked avenger Koninklijke Nederlandse Munt [Royal Dutch Mint] announced in early July the impending issue of what they are calling a ‘mirror coin’.
In point of fact the piece is a 41 mm, 15 g stainless steel round. It has no denomination nor does it show an issuing authority.
The item’s reverse displays the Batman logo. The obverse appears to show nothing! However, if a light is shone on it a reflection of the Bat-signal appears on ceiling, wall, whatever.
KNM have produced the round in conjunction with Warner Bros., Consumer Products. A similar piece was released by KNM some time ago for Harry Potter.
The mintage is limited to 8,000. It becomes available from August 5.