You might look in the chat "NVRHA Fakes" There a lot of CW dealers and collectors on that site. To do it right, you may have to send it to someone or take it to a CW show and get a consensus. I don't think anything like that can be verified either way on the basis if a couple of photos. Unfortunately, this is a well-known repro design, in fact I bought a couple for 7 or 8 bucks for re-enacting, lead backs and all.