That's a very nice find! I've got a gauge foot with a couple of gauges - yours has the "toe". I'm still looking for a blind braider foot, don't want it enough yet to pay eBay prices for it.
I've got a large lot of sewing parts/attachments coming in the mail. Not sure what I'll end up with, but I saw two hemstitchers in the group - and that is what I was after. Hopefully I'll find some other interesting items, since it's a total of 24 lbs . . . don't expect to find any Singer items with this group though.