To help date when is your Mafac "racer" brakes were manufactured go to
50's or 60's Mafac Racer ("DURAL FORGE" engraved)
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50's or 60's Mafac Brake Levers ("M.A.F.A.C." engraved)
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70's or 80's Mafac Racer ("RACER" engraved) and Brake Levers (Italic
"MAFAC" engraved)
< http://www.classicrendezvous.com/
If your Mafac have "DURAL FORGE" and "M.A.F.A.C." engraving it is great for collectors it. However, if your Mafac have "RACER" engraving it is not so great for collectors as they are easy to find in Japan. Therefore the set I have is worth not much. Anyone need a set of 70's just shipping plus handling of $5.00. Email off line for more details.
Regards,
Charles Nighbor
Walnut Creek, CA
Sunny low 80's