Rod_outbak may well be onto something with his Light Optical Works reference; LOW produced and continue to produce high quality scopes for many well known brands and others.
From a post on Rimfire Central:-
"a list gathered as highly probably brands which put their name on LOW manufactured scopes:
Bushnell Elite (formerly Bausch & Lomb, source Ken Marsh)
Weaver Classic, Grand Slam, Super Slam, T-series, Rimfire, Tactical (not the new 40/44 series - Philippines, Buckmark??, source Ken Marsh, AzizaVFR)
Vortex Razor (not Crossfire - China, or Diamondback and Viper - Originally Japan, now Philippines - Posts by C. Nelsons & MGT)
Clearidge (RFC post by Owner of Clearidge, Jon)
Nitrex ( C. Nelson RFC forum reported info from Manufacturer)
Huskemaw (Post #13, forum reported info from Manufacturer and Vendor)
Nightforce - Body & Lenses from Japan, LOW, Assembled in USA (source MGT correspondence with Nightforce, Post #10 this thread, also forum post #13 here"
I ended up getting a 6 x 33 "Light" branded scope on an M17 sporter that I bought as a donor, similar construction in some respects to the OP, but the markings are on the top of the rear tube section. I had not heard of that brand of scope so I did a bit of digging, and it turns out that in the 60's I thinks they sold under their own brand.
Here is a link to the 1958 United Binocular catalogue, the OP unit may be earlier than that, I reckon.
https://www.ebay.com/itm/United-Binocul ... 0791493654 Baz
It takes 43 muscles to frown, 17 to smile, and 3 for proper trigger squeeze........Relax!