I have never been able to nail down exactly when the model 93 crank was first offered. I know it was surely by 1969 or 70 at very latest.
Does anyone have actual dated catalog entries or magazine adverts showing the "new" crank first being released? Perhaps early photos showing the 93 on a bike in one of the big races?
I would really appreciate any [off list] scans anyone could send, or online references of anything which could pass for tangible documentation.
Not a big deal of course, but I'm convinced they were available before 1970, and would like to show a mechanic friend evidence of this... and also satisfy my own curiosity.
Thanks!
BOB HANSON, ALBUQUERQUE, NEW MEXICO, USA
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