Quote Originally Posted by Lakey View Post
Hello.

I am not sure that this rifle would have had the knurled Breech compensating screw. I think far more likely, it would have had the large washer, large headed screw with a tiny locking screw. See here

https://forum.vintageairgunsgallery....fle/#post-1794
I agree. The knurled screw came a little later.

John