this knife has changed a bit sense i took this picture. sense i carry this knife i test all my ideas on it. this is 1095 and i could see the hammon line a bit so tried ecthing it first i tried the viniger thing with not much luck then i found some ferric cloride from radio shack and tried it again. well it didnt make that hammon line stand out like i wanted but it did darken the blade alot. kinda like carbon steel changes colors after years of use. i like it . just thought i would add som info about how this knife is being used,. i have use it as a hacking tool many times choping different stuff with not one edge role ever. i would like to thank all the people here that answered my questions even though i might ask them twice. thanks everyone