Originally Posted by
Toolong2
I found a picture of an SR Laprade seatpost from an ebay listing. But I couldn't figure out how it would be able to adjust tilt forward and back. Is this the kind you used?
Seatpost SR Laprade 26 4 mm Vintage | eBay
Regarding eschlwc post, I would think the OP's seatpost is the original as it is French manufactured.
There are a set of ridges between the saddle rail bracket bottom and the top of the post itself. It can be adjusted as you tighten down the single bolt in the rear of the bracket.