What are the ways a photographer's name can be burned onto a print?
I haven't printed an enlargement in years (just recently got back into developing b&w film, but don't have an enlarger yet), but I've seen prints from as far back as the 50s where the photographer's name or some other information was printed in small black letters in the bottom border of an 8x10, or in the image area itself. I sort of remember reading how this was done, but I've since forgotten it. Is there some kind of small device that comes in contact with the photo paper, which projects the photographer's name onto the paper, either before or after it has been exposed by the light from the enlarger? Or is there just some mask with the printed information punched/cut into it and you make a second exposure on the paper using that mask? Sorry if this is a stupid question or has been asked before. I tried to search for the answer but didn't have much luck.