Cannot make out the zip code in the pic. If 85029, manufactured mid-'66 though '67. If 85020, made '68 - '73. Surmising the pic is a latter version. No P.O Box number in the cavity. Cast from mnbr. No sight alignment aids. Sound slot in the head. Quite light by contemporary standards, ~ 320g (IIRC). Arguably, all the various Ansers of this vintage putt essentially the same. The blockish bumper is the garden variety Anser, lots of them around. So don't overpay if you're considering an acquisition. They are all to frequently misrepresented as a Dalehead, or as being 'rare'. Neither being the case. So important to recognize the differences.