Perhaps some folks here can help ID this PVS-4... I went to look at it at a local shop. I am not interested in buying it at this point, but the owner is a friend and was hoping to help clarify a couple of things.
It's definitely a PVS-4. Sticker on unit for serial number seems to have been added later. And there is a 'sticker on the sticker' with the serial number 1100. There is also a serial number on the AA Battery housing (that looks like it may have een added later) of 2430.
Most interesting (and disturbing) is that the sticker on the unit lists manufacturer as "Optic-Electornics". Not a typo. ElectrORNics.
The two rings (focus and zoom, I believe) rings are both fairly loose. I just thought they were 'slopppy' compared to most Milspec units I have handled.
Unit has part number cast into main housing: SM-D-650110-1 which equates to a component number.
I did not test the unit, but owner says it works fine.
Any input/feedback I can provide to the shop owner? After reading the mis-spelled sticker, he is concerned and does not want to mis-represent the unit when he sells it. Oh, he acquired it from someone who brought it in the door. No more info I can provide on that front.
I am wondering if its a Pak or Israeli unit? Anyone have any good info?