Continuing with my cataloging of this bike, it is fitted with a Henri Gauthier Model 160 saddle. It's in a fairly extensively aged condition with surface cracking and major variable discoloration. But considering its age I'm glad it is still rideable and based on a short ride, comfortable. For an upright riding position its alright.
View from rear
Closeup of imprints
Top view
Underside
And an exploded view of the clamp and post components: