More of Those Indispensable Notions

First up - for the non-sewer, Bee's Universal Button Fasteners, consisting of a sharp pointy staple and a metal backing plate.  Since this envelope is still sealed after all these decades, the mystery of how to curve those sharp points into the grooves on the plate will forever remain one.

Next up - from April 9, 1895, the Singer Safety Patent Garment Ready Opener Hook.  (Say that fast!)  The particular charms of this hook include being wringer-proof, a very real problem that vintage clothes buyers can attest to.