The U.S. Post Office

Front:
THE U.S. POST OFFICE, S. F. T. H. SPAULDING, PUB., SAN FRANCISCO, CAL. CHE ??????

Back:
(NO OTHER WRITING) IN SPACE BELOW MAY BE WRITTEN SENDER'S NAME AND ············· THE SPACE ABOVE IS RESERVED FOR POSTMARK SESSIONS >1c MEXICAN 2- 2c