Yup. It's Damascus. It's a carbon steel, ATS-34 Damascus that was Nitre Blued. The high carbon steel picked up the blue, the high Chrome ATS-34 didn't.
yea its but what if you get it all bloody? then its no good. at least with a funky nitro blue gun, it wont get all messed up. should have got that color on a firearm of yours. then it would be sweet.