Leave it to the CR List to not only provide some wonderful pictures on the website, but this note from Jan Johnson who identifies the rider, her husband!!
This note posted by Lou Deeter, Orlando FL
From: picabo58@yahoo.com
The poster you are referring to is the one taken by Jobst Brandt of my husband, Peter Johnson, on the Gotthard Pass in Switzerland, heading for Airolo (where the huge tunnel collision and fire just occured). I'm a little partial, but I think that it is perhaps one of the coolest photos ever taken of a cyclist not in a race. That photo is impossible to recreate, as there are trees now just below where Jobst stood on a steep hillside to take the photo.
The poster is no longer available, but Jim Westby, the Graphic Artist who does work for Palo Alto Bicycles and Avocet is trying to get that series of posters reprinted, and/or large photos made.
I'll give Jim a call and see if he's any closer to getting some reprints made. Otherwise, your only chance of getting it would be to find someone who has the poster. I hope you are successful. Let me know if you find more than one. I'd like to have a couple more myself.