I have a new to me Bertin (thanks Chuck ;^) that needs a 26.6mm seatpost. I would really like a steel Simplex and I know they exist in that size, but it seems to be uncommon compared to 26.4mm. I have a nice shiny 26.4mm Simplex that I would happily trade. I think I have also seen one that had a steel post and alloy head which would be fine. I would take an alloy Simplex, but only the one that has the head with two bolts to tighten up (not the one with a single bolt going the whole way through). I suppose something else cool and French would also be fine...
Doug Van Cleve