1850 CALIFORNIA PRE-STATEHOOD SAN FRANCISCO MANUSCRIPT TO LONDON VIA PANAMA. LETTER AND DOCKETING DATED SAN FRANCISCO MANUSCRIPT 29 JUNE 1850 Blue, Forwarded by Herckenrath & Van Damme N. York CALIFORNIA STATEHOOD SEPTEMBER 9, 1850 EARLY CALIFORNIA POSTAL HISTORY. To view high-resolution images, please visit the links below.