Hi there, I've been searching for clues about the maker of this saw. But of course the most important part of the etch is too faint. It appears to have three crowns (but that seemed to be common in a certain period?), has "Sheffield" and "CAST STEEL" at the bottom. But the makers name I can't read. It clearly ends with "& Co" and doesn't seem to be a very long name. Most of the letters seem to have a base (?), Like a "D", "L", "E", but I'm not sure. Any ideas of who the maker is? Thanks.