Statistical history of John Ridgway's vertical revolving battery [microform] : with drawings.
Boston : Prentiss & Deland, Printers,
1865.
"Recommended for Trial by the Board of Naval Examiners, June 13, 1862, and for Adoption as 'Due to the Public Interest,' by the Naval Department, Permanent Commission, May 11, 1864."
Sabin 90809.
Sabin Unit 147.
SCI-088.
Microfiche.
Artillery.