ARMY POST – PRESIDIO of SAN FRANCISCO – DRILL REVIEW – c1898 PHOTO. UNIQUE VIEW OF THE U. ARMY POST PRESIDIO of SAN FRANCISCO. ARMY POST TENT CAMP IN THE PRESIDIO OF SAN FRANCISCO CALIFORNIA (DURING THE SPANISH AMERICAN WAR) TROOPS DESTINED FOR THE PHILIPPINES STAND IN A DRILL REVIEW WITH THE SAN FRANCISCO BAY IN THE DISTANCE. THE INFLUX OF U. TROOPS TO THE PRESIDIO DURING THE SPANISH AMERICAN AND PHILIPPINE WARS FOREVER CHANGED THE FACE OF THE PRESIDIO. SHARP FOCUS AND VERY GOOD CONTRAST. 2 1/2″ x 3 3/4″.