I've seen Mr. Ware's writings on "variations" but this seems to be a strange one. Gun serial # is 142XX, with additional # 118 on left side of frame & both grip panels. Early gun with assembly #s, or were the additional #s added later? Reason for question. There are NO caliber markings on gun, which gave me cause to suspect 44 Rem. caliber. Not so. 44WCF drops right in. Visibly, gun has the lanyard ring, pinched post front sight & non-rebated frame. Supposedly, one of these with no caliber markings on frame or trigger guard bow, is going to be 44 Rem. but if it left factory as 44-40, a "44" would be on left side of frame in front of cylinder. Traces of original blue in protected areas. Can find no marks on cylinder. Thought of removing trigger guard & ejector assembly to look for marks but after encountering resistance, I stopped for fear of twisting off a screw head, no matter how well the screw-driver fits. Any input, especially as to year, would be welcome. THANKS!