cards were issued by the Exhibit Supply Company of
Chicago. The Company also made cards depicting, cowboys,
music, movie, and sports stars of the day. The postcard sized cards
were made to be sold in vending machines for a penny, and were
not issued as sets. The blank backed cards are not numbered or
dated. Issue dates were mostly determined by identifying the
text on the front such as "Made in U.S.A." or
"Printed in U.S.A."