All 35mm cameras have small viewfinders compared to a medium format or LF camera. Following that logic the cameras of old had bigger viewfinders than modern cameras. The most precise 35mm RF camera was created in the 1930's the Contax still has the longest rangefinder base of any 35mm RF camera, accessory viewfinders especially the Albada kind again for the Contax are just sublime. BTW the Canon F1 is a museum piece as well just a bit younger but outdated nevertheless.
The photographs and cameras for sale are all currently exhibited in the Gallerie Westlicht well worth a visit. This Auction also puts a special emphasis on photo books. The cameras that are not being sold often end up in the Leicashop at reduced prices