is it odd for a 1858 repro to not have a manufacturers date code anywhere on it? I bought the gun used, its a richland arms "made by palmetto? and the only proofmarks i can find are the pn with star symbol, and the 2 rifles crossed with star on top, other than that there is a four digit number (which i assume to be the serial number) and a 2 number code of 47 under loading lever and on frame under grip. Does it have to be there somewhere or was date code stamping a litle lax on some of the cheaper guns? thanks.