Battery No. 4, near Yorktown, mounting ten 13-inch mortars, each weighing 20,000 pounds; east south end.
Gardner Stereo #380
James F. Gibson - photographer.
Negative at Library of Congress (LC-B815-0380)
**note: Battery No. 4 was manned by Cos. F & G, 1st Connecticut Heavy Artillery.

Battery No. 4, near Yorktown, mounting ten 13-inch mortars, each weighing 20,000 pounds; east south end.