Hello again
I did some searching and found out that this gun is from Anschuetz and is similar to the Anschuetz Model 184.
I have emailed Anschuetz and am awaiting a reply, but cannot find a supplier that carries the older models (my Father passed on in '71 so the gun is quite old!). I found two pics on the net, but the did not show the rear sight that my gun has. It is a spring site with holes in it and the adjustment is made by sliding the adjuster (it is grooved to fit the contour of the barrell and has a little "nub" on top that fits into the holes of the spring part of the rear sight - slide it up to raise the rear sight). I searched but did not find a similar set-up on any other gun.
Again, any help would be appreciated.
Thanks[/img]