The sight window is 5" to the cut and this was definitely puchased in the late 60's - my father thinks '68. My grandfather only hunted with it for a season or two, the first one being the year my sister was born - 68. If it was refinished, it was prior to that as it's been in a closet since then. No silscreens, no markings other than what's shown. No overlays except for very thin maple on the tips.