For last year's 36 Days of Type challenge, artist and type designer Marie Boulanger selected 26 postage stamps from around the world with letters on them (C for Cuba, F for France, K for Kenya, etc.) and 10 stamps with the numerals 0-9 on them. What an amazing array of designs and lettering styles. I've included a few of my favorites above — you can see the rest on her Instagram or collected here in miniature.