Looking for a Unertl scope expert. Got three of them. Two are just over 1" tubes. One is 3/4". They are not marked as to magnification. The two larger scopes have a logo "Unertl Optic Co". The smaller one is marked "J Unertl Optic Co" and is in a metal box. They all have fine crosshair reticles. One of the larger ones is a fine crosshair with a dot. I don't know Jack Feces about them but I'm thinking they may be reproductions. Appreciate any info.