The first is an Original model, what I am assuming is a K1 with a 3.8 Tessar. Its serial number is 111039. However, there are two distinctions on this camera that I have yet to come across on pictures I have researched for this model. One is a metal nameplate of some sort on the upper back of the camera. Unfortunately it is worn in the central portion, so I can't make it out.
The second peculiarity of this camera is its embossed brass (or copper) focusing knob with what seems to be a bridge over water and the number "10" embossed on it. Every picture that I have come across shows this model to have a black leather circle on the knob.
I attach pictures to help. Any information that anyone can offer will be greatly appreciated.