Hi. I am looking for a seat post bolt for early 1970s Gitane. My understanding is the Gitane and Peugeots of the early 1970s used an odd seat post bolt and nut for clamping the seat cluster. Attached please see the Gitane, without the bolt and a Peugeot with the nut/bolt.I am looking for a seat post nut/bolt for the Gitane. Or some other solutions for clamping the seat post. (Photo 1 & 2 show the seat cluster of the Gitane, Photo 3 is a Peugeot which I believe has a similar nut/bolt which would work on the Gitane)Or, maybe, there is a better solution.Thanks.