Overall: 8 1/2 x 7 1/4 x 5 1/4 in. ( 21.6 x 18.4 x 13.3 cm )
stamped: on exterior near upper joint of handle: "J. [L] Burnett/C Sealer/1862/1853"
stamped: on exterior near opposite side of handle joint: "D. W. C./J. MEAD/1855/... PENDLETON/C. SEALER/1864"
stamped: on base: "L. BURNETT"
Sheet copper pitcher, tapered cylindrical form with loop handle, crescent-shaped spout soldered to lip (may be a measure -- marks are probably names of inspectors of weights and measures).
Due to ongoing research, information about this object is subject to change.