I just found my grandpa’s old stamp collection. It’s a whole box of stamps. Some of the them are just envelopes full of used stamps, and there’s a bunch of them that are four of the same stamp, mint, in a piece of plastic.
I have no idea how to display these stamps. There’s a couple of “stock books” included in the collection, but I can’t display the sets of 4 in those. What’s a good way to display my collection, and keep adding on to it with new stamps?