NO. 1 SHOVEL ON CHICAGO DRAINAGE CANAL.
OSGOOD DREDGE CO., Albany, N. Y.
MFRS. OF DREDGES AND STEAM SHOVELS.
OTIS & CHAPMAN,
STANDARD GRAVEL and HARDPAN
EXCAVATOR
MANUFACTURED EXCLUSIVELY BY
JOHN SOUTHER & CO., Boston.
Earth Displaced at ONE-QUARTER LESS EXPENSE Than by Any Other Machine
