I don't know much about them aside from these being glass. The CAC-like striped one at the bottom, according to a German ETSY seller I bought more from, is from the 1950s.
I've had a grand time browsing eBay for old buttons although aside from the intricate brass ones, glass is the only material that grabs me.
I also have some of the rarer Japanese ceramic ones I inherited from my grandmother that I need to dig up.
Have you seen the "charm string" glass ones that are basically 1/2" marbles? This one went for $13 and appears to be hand gathered(?). Quite a variety of these.
How did you store your buttons?