Take some pictures of the kit and post them here....
There are range-finder cameras that present you with two windows to look through.
The larger, brighter one you use for framing your subject.
The smaller, "squintier" one is used just for focussing - it has a coupled range-finder patch that you align for focussing. The view through that window may only be part of the scene.
I don't know if there are Leica versions of this approach, but there certainly are others. The rangefinder versions of the Kodak 35 are an example.
The 111A was very common, so prices reflect this. The 111F and 111G were less so and a bit easier to use with the rangefinder and viewfinder windows much closer together. The 111G is the most collectable because it has the frames for 90mm plus is the last of the Barnack (screw) Leicas.
Should be a perfectly useable kit, even given it's age, though a 111G kit like that would be worth far more to a collector especially if you have a 28mm Summaron and the 85mm Summarex.
an UNcoupled rangefinder is a rangefinder that is separate from the camera. You us it to find the distance, set that distance on the lens and take the picture.
A parallax corrected viewfinder is one in which the frame lines in the viewfinder adjust for whether the object being shot is closer or farther away. Generally, higher quality rangefinder cameras with coupled rangefinders that are build into the viewing window, such as M- leicas, have these. I think the IIIg does too, but don't quote me.
Mamiya: 7 II, RZ67 Pro II / Canon: 1V, AE-1, 5DmkII / Kodak: No 1 Pocket Autographic, No 1A Pocket Autographic | Sent w/ iPhone using Tapatalk
I will try to take some pictures next time I go over there. I've been working on an email in which I try recap some of what I've learned here.
On this model, the viewing window with the framelines is separate from the rangefinder focusing window, though they are next to each other and not too inconvenient.
As far as I know, there is no Leica III with projected framelines that has non-unified windows. If you have two windows (separate RF and VF windows), it does not have projected framelines.