I knew I asked the right group of people about my mystery items yesterday! Thank you for your responses! Punch needle and bias tape makers sound right. The clips don't have a hole in the end however; the metal is just folded with a chisel shaped tip; no openings except the side just like a big binder clip. Would that still work?
Here is the lovely sewing chest that started it all.How about the prices on these Boye hooks below? I wish my hobbies were that cheap now! 1930's-40's maybe?
The two below are unmarked on the other side of the throat, completely smooth.
These are my next mystery hooks. The first is marked "minerva".
#2 doesn't have a throat at all, #3 and 4 are stamped (not raised) with 10 and 13 but nothing on the other side and the last has no markings at all and that interesting hole. The heads are so tiny!