I took these photos with my Topcon Super D with 35mm, 58mm, and 135mm lenses. Kodachrome slide film. Both of us were strong riders, ah, to be young!

I see from the photos that both bikes have Campagnolo triple cranks with 36 tooth inner ring, I assume the other 2 were 52t. and 42t. I don't think we used anything lower than a 25t freewheel. Gran Turismo rear derailleurs! The bike Virginia is riding was Merz # 2 I think. That down tube decal was only used a few times. The color of her frame inspired the Specialized Bicycle "Merz" Sequoia tribute limited edition bike, designed by the very talented Erik Nohlin. Story here:

https://theradavist.com/the-jim-merz...lized-sequoia/

James Mason has some great bike photos on this link: https://pbase.com/zidar/root&page=3