Original Soviet WWII 6x30 Binoculars in Case with Inscription on Strap

Original Item. Only One Available. This is a lovely set of Soviet (Likely Polish) made binoculars from World War II. The set comes in its original carrying case, and has some inscriptions on the carrying strap.

The left barrel of the binoculars read:

6 x 30
441687
((20))

The binoculars are 6x30 and are in great condition, with their original eye-cover and neck strap. On the neck strap is an inscription, YBO 80r, written twice, and on the eye-cover is YBO 81. This translates to UVO, but we are unsure of the significance. Also included is the case with the original strap.

Comes ready for further research and display.