Each is a 13/16” litho. These are from the 1930s up to perhaps 1937 as there is an included flag for the Irish Free State which ended in 1937. There is also a flag for Jerusalem which includes the Star Of David as part of the flag design. Most of these have a brass luster back while a few have a Green Duck logo and just a couple have a silver colored back. The flag for “Ecuador” fits in with the other designs although this has a numeral “27” above the flag. It also has two paint dots off. Greece has some small scratches and Portugal is dented. Persia is faded. The rest are all Exc. to Mint.