There's probably a 1000 more different types but here's a few of mine.
Click to enlarge;
DSCF2024 by wvwheaties, on Flickr
L-Top ??? mark indicates no markings.
Barnes Tool Co., Wakefield #5, ???, Mossberg #74, ???, G in a Diamond (June 7, 1892), ??? spoon end, ???.
Middle row; L&S...