Thank you very much for putting this information out there. Please try again with the rest of the photos. For the last year or so I have started to collect the Savage NRAs. Such a great design, a model of simplicity and functionality. The sights are a mystery to me so far. Any information is appreciated. I have two Lyman peep sights a S6S (for model 23A) and a 2A with a SN mark on the underside, both are mounted on the stock.