These range from 1.75" to 2.5". Each features a window for a name card with some present and some not. For additional groups of these also see lots #440, 575, 673. This group begins with 1933-1934 pair for "Iowa Independent Telephone Assn." This is followed by a sample "000" company badge for "Radio Corporation Of America/RCA Victor Division Harrison, N.J." This is followed by one for Stromberg Carlson. Others include Schlitz Beer and enamel one for "Howard Johnson's" and additional for Food Fair, A & P, National Tea Company, Wonder Bread, Kroger. Some of these were used by employees rather than for conventions. Last two in the lot reference "A Pleasure To Serve You/Drink-Coca Cola In Bottles." These two are of a more recent vintage but the vast majority are 1960s and earlier. A couple have some small age traces but largely minor in nature and vast majority are VF to Exc.