Front:
YERBA BUENA LIGHT STATION.
SAN FRANCISCO
BAY, CAL.
E C. KROPP, MILWAUKEE
ESTABLISHED 1875. LIGHT, WHITE. 5TH ORDER. VISIBLE 12 MILES.
10 INCH STEAM WHISTLE, 4 SECOND BLAST, 16 SECOND INTERVAL.
Back:
PLACE
STAMP HERE
Sposr Sargs
DOMESTIC
ONE CENT
FOR EIGN
TWO CENTS
THIS SIDE IS EXCLUSIVELY FOR THE ADDRESS.
