Keystone Post Cards "A Busy Day" Series 55 Set of 6

Front:
Katharine Gassaway "RISING TIME" 550 COPYRIGHTED 1907 BY JULIUS BIEN & CO.N.Y.

Back:
PLACE STAMP HERE. Post CARD DOMESTIC: ONE CENT. FOREIGN: Two CENTS. THIS SPACE MAY BE USED FOR WRITING THIS SIDE FOR THE ADDRESS ONLY KEYSTONE POST CARDS" A FULL DAY" SERIES NUMBER.55 PUBLISHED BY JULIUS BIEN & COMPANY N. Y.