Hi there,
that is a T.A. Criterium crankset (Ref. No. 1500 or W1500). Here is a link to a site on these:
http://members.aol.com/
and I will mail you the ad separately. I believe that they are from the early 60s. Nice crank! I have mine on a mid-60s Rickert. I will post photos once I decide on the correct brakes.
Best, kim -- Kim Klakow
Diplom Grafik Designer Akimbo71@gmx.net +49172-1786481 Berlin - Germany
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