Probably late 70's mfg. I would guess and very well made. Smooth as silk in cocking with a wonderful adjustable modular trigger that was alot like a well-known german One. Real adjustable too. This was well before the current Gamo importation and accompanied power race.Leather seal.
It was nice to see the specs from EJ. Thanks EJ.
Mine did perhaps 500ish even after rejuvination , spacing, different spring etc. That was all she wrote. Accurate though, and a joy to use. Felt German.
I hope you are feeling better, got to get you down here before the good weather ends.
Rob
Here's some pics:
Here was the amazing part:
They used to actually make them like this: