The first flight to London on a Hydro-Aeroplane, 1912, an openwork silver and enamel award badge by B.H. Joseph for Carrington & Co, London, view of a Short Brothers biplane over the sea, hydro-aeroplane 10th august 1912 around, vignette of the tower of St Paul’s Cathedral above, rev. named (To Commemorate The First Flight on a Hydro Aeroplane to London by F.K. McClean on a 70 H.P. Short Biplane) hallmarked Birmingham 1912, 50 x 35mm. Very fine and extremely rare; a significant item of Naval Air Service history £600-£800