http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Grenade, hand, fragmentation, M61, M67, M33, M26 and M26A1, w/fuze, delay, M204A1/A2 or M213
"This bulletin supersedes SB 742-1330-94-435, dated 26 January 1973"--P. 1.
SB (United States. Department of the Army) ; 742-1330-94-350