Unique Vintage Antique TROXEL Bicycle Seat with 5/8\" Post/Stem Black Leather For Sale

TROXELBICYCLE SEATwith STEM / POST
I do not know the history of this seat and cannot tell how old it is. It has what I believe to be a leather cover that has no cracks or tears. The bottom side has some oxidation that I did noy attempt to remove. There is a post that has a diameter of 5/8\" or 16mms that lies in the channel and is held with a clamp and bolt and it sems to be solid. I do not think that the two springs are what I see advertised as \"long springs.\" They measure about 2\"s in diameter and from the meatal seat to the top of the cap are about 3-1/2\"s at the longest point From what I can tell this seat is not common.
PLEASE SEE PHOTOS