Go to arm$list and search for "FOR SALE: MARLIN 1894CSS 1894C 1894 CSS JM STAMP." Then look at the second picture. Ive never seen a "JM" "stamp" like that before. Looks like it was engraved with a dremel tool or someething. OR, is this a rare variation of the ubiquitous JM mark? I smell a skunk myself, but I'm a relative noob when compared to the expertise on this board.