I have a small gentlemen's two blade pocket knife bearing the stamp S Nippon. There might be a letter or symbol before the S, I can't really tell, but the Nippon is pretty clear. Main blade is broken off just above the stamp, but otherwise the knife is in pretty good condition. Appears to have bone scales and silver bolsters, color of metal is slightly different from my other knives with nickel silver. I understand that stamp was used between 1890 and 1920, after which Japan was used. I saw the post about the big Messervy, which appears to be a knife from the 60's stamped Nippon. I believe the design and materials in this knife fit the possibility that it is from this earlier era, but I have been unable to locate a single knife online to compare my stamp with. I'm hoping someone here has additional insight about this knife, or guidance as to where I can get more info. I am unable to get a good picture of the stamp, but I am including a picture of the knife. It is 2.75" long by 5/16 wide. I'd like to know if the style fits the era, or anyone knows where I can see other Japanese stamps from that era, or any other information you think will help me in confirming or denying the identity of this knife. If there are none on the internet, I assume it's fairly rare. Thanks in advance for any help you provide. I've enjoyed your guidance as a long time non-member reader.