There are a lot of great and famous pictures taken in the past that are considered fine examples of rangefinder photography and Leica photography.
I'm putting together a list of classic images taken with a Contax rangefinder. Im sure some of the top shooters in the golden days must have used a Contax instead of a Leica. Let me know of any of the classics that were taken with a contax.
Robert Capa used a Contax, so any of his images would apply. I like the contrast of "Spanish Soldier" and "Outside the Cafe de Flore", both interesting images, but completely different contexts and feels.
I can't think of any other Contax users off the top of my head...
I think there is an informal shot of O'Keeffe and a companion that was taken with a contax by Ansel Adams. There is also a lovely informal of Stieglitz taken with the same camera. Adams wrote that he preferred the Contax to the Leica of the day, but I don't think he elaborated.
Contax was the favorite for action shooting, and low light. In the era of EI 12 film
and uncoated lenses, the f/1.5 Sonnar opened up the world for Contax shooters.
Bertele's designs made fast lenses with fewer air-glass surfaces,
so there was simply more light transmission and less flare.
There was no other choice.
But as for finding out who shot what, you'll have to start digging through annuals,
and bound magazines.