Monsieur Leonard E. Opdycke, author of "French Aeroplanes Before The Great War" gives the following information:
"Little is known of the aeronautical work of Clement Galvin of Lyon,who nevertheless
designed one of the most advanced, if not successful, seaplanes of his time. His first
design was a small biplane with a 12 hp Anzani: tested in 1909, it did not fly. His
second was a monoplane mentioned briefly in the late fall of 1911.The third was the
seaplane tested and probably not flown on the Saone River in October-November
1913. It had a highly-streamlined fuselage of circular section with a blunt round nose:
the engine was mounted as on the Gallaudet seaplanes in the fuselage behind the
wings, with the propeller turning amidships on a ring. The lower wing was set below
the fuselage, the upper at shoulder height; the machine rested on a wide central float
and 2 small tip floats, and the bottom of the fin was attached to the tail of the main
float. The pilot sat on top, level with the leading edge of the top wings. A blurry photo
shows it taxiing at high speed, the ring removed from the propeller, leaving a gap
more than 2' long; it has French colors on the rudder."
About flight testing of this aircraft he obviously had a different opinion.
