I just got a 5x7 Sym. Gundlach lens from Jim Galli.
It has a slot at the bottom. I assumed for Waterhouse stops. I had initially assumed it had an iris that was broken, but other than an aperture scale, I don't recall seeign an aperture lever.
So, can anyone please confirm if it had slot-insertable stops, and how I might go about determining the dimensions of those?
I am going to go restudy the scales now that I have more clues. I'm wondering if the scale above what looked like an f-stop scale (6.2-45) may have info about a hole size.
There is still the question of the overall size of the Watehouse stop 'plates'.
I assume a 2-cylinder pneumatic shutter and waterhouse stops puts it roughly 1900 vintage?