I don't know how this happened but I just realized that what I thought was a matching pair of Record crank arms...is not. This is what I have:
Drive side: 172.5 Strada; date code is 0 in a circle (1980). Front side is almost perfect, and the reverse has a typical toe strap rub mark.
Non-drive side: 170 Strada; date code is 4 in a circle (1984). This one looks perfect, could pass for NOS.
BTW, both of these have had pedals installed, so they both have the telltale halo around the pedal holes.
If you have a single arm for sale or trade, that will match either one of mine, please let me know. Ideally I would like the date codes to match, but beggars can't be choosers, so I'll consider a crank arm in the right size and condition, even if the date codes don't match.
Thanks for looking.
Miami Florida USA