The C-Record is all original spec John. I would say it is from around '87, what is also more or less the same year as my blue one. I think yours is approx '84/'85 and from the person I picked it up from I understood he regularly upgraded it with the 'old' parts he got from his uncle for cheap or free. That probably explains the mix of Dura Ace, NR/SR, Superbe of various age.
The white one with Croce d Aune is newer. I learnt from Simon that he got the frame at the old little Zieleman shop what is nowadays a Dutchbike repairshop. Run by Ko's son in law. He also acquired a 50th anniversary group there and that is what he built the bike with. After a while Simon discovered he liked the idea of speccing it with a Delta group, so that is why it is equipped with non period correct CdA now. The 50th went to me.
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