I don't know a lot about these, as a newbie.
My haircutting person runs a consignment antique shoppe on the side and she has a vintage straight razor.
The blade itself looks in good shape along the edge. However, close to the edge and at various places are little dark circles. They might be oxidation or rust, I'm not sure. They seem too dark for that, but then the metal of the blade obviously plays a factor in the colour of these defects.
Is there any way for me to tell what they are? I'm willing to haul a magnifying glass over to the shoppe if someone can tell me what to look for...