I'm actually really interested in what these are like, and would be most happy to know more or see pics. :huh:
I'm not really a photographer and the best 'camera' I have is an old Samsung S5, but I'll put a link to a few snaps below.
As for what they're like... I have kept them pretty mucky on the outside as it's part of the history of previous owner(s), a bit like patina. Who knows where they went before I got them!
The central spindle has graduations which seem to correspond to IPD, which is pretty cool. This part is quite stiff, so retains its settings very well. The downside is that the reticle is fixed, with no apparent method of rotating it, so if your IPD is much over 62, your sighting marks will be badly on the conk!
There's no actual focus wheel, but each eyepiece is individually adjustable, so I guess that's your dioptre and focus. The adjustment range is marked from -4 to +4, but really the range is closer to 12 at either end, based on how much further the cylinders turn. The threads on these are
buttery smooth, but also exceptionally light. It only takes the touch of one finger to move them, which means they are easily knocked and you'll forever be fiddling with them each time you raise them to your eyes!
The objective ends have screw-off collar caps, which hold little plastic insert rings against the objective lens. I've no idea what either of these do, but it looks like the innards are sealed with some kind of plastic putty and then the caps and rings tighten everything down while it cures. Not something I'm willing to mess with without more research or professional advice, though.
Eye relief is good, with and without glasses. Field of view is about 8º and sufficient for purpose (ie ranging targets and directing mortar fire). My lenses are flecked with grit inside, but there's no real perceptible chromatic aberation that I can detect. They're really quite good, I find.
In the left side is the reticle, which comprises horizontal deflection and vertical ranging scales in mils, which correspond to traverse and elevation on the mortar sight. I've included a shot of this, though it wasn't easy trying to hold binoculars and phone camera, and keep the view aligned, and keep it steady enough for a shot, all without disturbing the focus!
Anything else you're interested in, I'll do my best to answer, but in the meantime... Hopefully you can see these:
https://imgur.com/a/ytxTLEX