I used to own a 4x5 Auto Graflex, which I remember I enjoyed playing with. Now I have acquired two Plaubel Makiflex cameras, the Standard and Automatic models, which are sort of a similar type of camera. Of course they don't fold-up like the Zeiss, but I have taken the Makiflex Standard on long hikes through various public parks, and they work very well, being not at all too much to carry around. These cameras have a counter on the side of the body, one body has been fired 27 thousand times, the other 32 thousand times. That's hard use! Both are functioning perfectly.
I just picked up a very clean Plaubel Makina I from CUPOG on e#%y. I'm thinking it might be good for traveling around when I want really portable medium format.
The Model I has no rangefinder, that came along with the model II. But I can use an accessory rangefinder, does anybody have a suggestions? Long ago I owned a very old Leitz rangefinder, which fit vertically into a shoe.