http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Telescope mount M25 (for 4.5-inch gun carriage M1 and 155-MM howitzer carriage M1)
31 pages : illustrations, diagrams ; 23 cm.
War Department technical manual ; no. 9-1545