Beautifully struck silver medal, 1.75" dia. Giffard and his balloon on the front (unreadable artist initials on Giffard's lapel). Reverse also finely struck with RAF logo and a lovely wreath encircling the engraved text: "Henri Giffard/1825-1882/First flight of a powered airship/24th September 1852". English silver hallmarks on the edge (I think; difficult to read). Mint condition, housed in circular plastic case.