I have a NOS metal badged SIMPLEX alloy post in size 27.0 that will be list ed on eBay later this evening. Even has the original red/white/blue pape r "STC" label (selection tricolore course).
Alloy top, alloy post, with chromed steel rail clamps and hex tightening/fi xing nuts. Post weighs 267.1 grams and measures 250mm in total length,
Since I'm not a fan of any French components, I can't offer any clue to the age, but am confident in Eric Elman's thorough knowledge, so I trust his a ge timeline estimate.
Yes, the size truly is 27.0!!! If anyone is interested in a couple previ ew photos, I would be happy to share.
Regards,
Kevin Kruger - Grantville, PA