For those interested here is some side by side photos of a Replica Seat Cover as compared to a original SandCast Seat
( yes the original is currently getting the forum recommended Skin So Soft Treatment , and I am getting the gears from my wife for smelling so good

)
The original seat , was removed from a new sandcast when new and replaced with a "queen" style seat. It then spent the last 49 years in storage.
From what I see from the side by side comparison "Replica" is almost an exact match in Logo, Color design and stitching.
The font looks to be a match, and the size would be correct once it is installed.
Hope this helps someone....