Each is a 2.25" long brass stickpin with a sheet of celluloid firmly wrapped around the pin. Fronts are in gorgeous color while reverse gives text history of the country. Along the reverse pin shaft is the name of the country and its population. In even tinier lettering is the copyright of the maker Cruver of Chicago. Although not indicated as such, these were likely used as product giveaways, again most likely cigarettes and c. 1910. Quite a few of the flags have the added text "70 Nations In Full Set." Couple have a small brown mark on reverse but vast majority are Mint as issued.