I recently purchased two globe sights on ebay and when I got to looking closely there is no markings, the bases are different heights and the ends of the dovetail base have different curvatures.  Anyone have a "real" 67a globe that could supply top and side photos? Did Winchester mark their globes? The apertures with the sights also showed that the slot was 0.007" different and two of the apertures won't one of the sights. Are these reproductions and, if so, by whom? Appreciate any help here. Thanks