Not exactly for the retro bikes here, but nice stuf nevertheless.
I am selling my Thomson setback seatpost in 27.2mm x 330mm black. This post is in excellent to mint shape as it was only used on my commuter. 35 quid + shipping.
I also have an FSA OS-115 stem with carbon faceplate. 110mm x +/- 6d x 31.8mm clamp diameter. This was used on my road bike for a brief period - it looks new except for a few TINY marks. It is mint with about 200km. 30 quid + shipping.
I live in Switzerland, so I will subsidise shipping to the UK, since this is largely a local forum. Let's say, I will split shipping with buyers.
Paypal is best for me.
Pictures are available if necessary...