Aviation 1878 ‘Henry Giffords’ Giant Balloon at the Paris Exhibition Medallion the obverse a fine illustration of this large Balloon over Paris. Reverse; Legend “Souvenir de mon ascension dans de Grand captive a vapeur de Mr. Henry Gifford” Attractive Gilt plated, size 50mm. Note: All these who ascended in this, one of the largest balloons of the 19th Century was given this attractive medallion as a souvenir of their flight.