The Hamilton Mint produced this set of 50 ingots in a limited edition housed in a walnut display case, with booklet and Certificate of Authenticity. The set was available in either silver, or gold-plated silver. The front of each ingot has the name and scene of a famous airplane in American history. The back of each ingot has "WORLD OF FLIGHT", a brief note about the event, and a troy oz / purity stamp.
GOT ONE OF THESE? WE WILL BUY IT