Hog Island shipyard, Philadelphia. [graphic]. Aero Service Corporation, photographer. Waterfronts -- Pennsylvania -- Philadelphia. Boat & ship industry -- Pennsylvania -- Philadelphia. Vessels -- American -- Pennsylvania -- Philadelphia. Aerial views of the shipyard at Hog Island in Philadelphia. Industrial buildings and sheds, railroad tracks and shipbuilding equipment can be seen from several angles and many boats and ships are docked in the harbor. Negative numbers: 1211, 1216, 1387, 1388, 2851. PA. Philadelphia. 1915 ca. 1915 Glass negatives -- 1910-1920. Aerial photographs -- 1910-1920. 1 negative : glass ; 17 x 22 cm. (6.5 x 8.5 in.) 4 negatives : glass ; 10.5 x 13 cm (4 x 5 in.) digitool:61386 Library Company of Philadelphia PRINT PRINT Aero Service [P.8990.1211; P.8990.1216; P.8990.1387; P.8990.1388; P.8990.2851] P.8990.1211 P.8990.1216 P.8990.1387 P.8990.1388 P.8990.2851 Hog Island (Philadelphia, Pa.) Delaware River (N.Y. - Del. and N.J.)