Just received a nice, and rather unusual, CK 3611. I overpaid it but, you know how it is, I wanted it.......
Here is the 3611 in a 1939 catalog (not sure that it is the correct ref as the lugs do not look faceted on the catalog, but its the closest, and only squre 23.4SC other than the 1936 Medicus, that I've found) :
Click to expand...