I have two Ruger handguns: .357 Blackhawk with a flat top and the work Micro on top 4 5/8" barrel and .22 Single Six with 5 1/2" barrel. The Single Six, from what I read on the internet, is first production in 1953 and the .357 is also first production in about 1955...both have original factory Stag grips. Would love to know high and low value of these if I decide to sell. Both are in excellent condition. Thank you.