I'm still waiting to get the remaining images, but I have two articles on Campy wheels at:
http://www.geocities.com/provamo72/
Your push button should have single slot wheels, as pictured. I believe they only came in 7" front and 8" rear.
They should be stamped 8 X(or J) 15 or 7 X(or J) 15.
The second article is found under "Tech Info".
Chuck
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