odd railroad cars, log carrying construction, dirt, and oil 1902-1903

http://sfmta.photoshelter.com/gallery-image/1903-1906-Origin-of-United-Railroads/G000049W2j9fGEG4/I0000AJzzD15ouEw/C0000ShJf.qrWPWo

http://sfmta.photoshelter.com/gallery-image/1903-1906-Origin-of-United-Railroads/G000049W2j9fGEG4/I0000i8oJ6EA49Fs/C0000ShJf.qrWPWo

used for oiling the roads in a sprinkling way, to keep down dust

http://sfmta.photoshelter.com/gallery-image/1903-1906-Origin-of-United-Railroads/G000049W2j9fGEG4/I0000DQMP9ndcv60/C0000ShJf.qrWPWo