Each is a 13/16" litho from the 1930s. Each button carries one photo of him and one letter of his name. Paperwork we saw long ago identified this set as a movie theater promotion for which a free admission or prize was given upon after the patron completed the set by attending multiple movie attendances. Scattered but largely pinpoint marks, although letter "S" has couple of short hairline scratches on right side. One VF and ten Exc. to NM. One of only two sets known to us. Rare.