erc:
who: United States. War Department.
what: Ordnance maintenance : Browning machine gun, caliber .50, all types
when: 19420612
where: https://digital.library.unt.edu/ark:/67531/metadc29982/
erc-support:
who: University of North Texas Libraries
what: Permanent: Stable Content:
when: 20081203
where: https://digital.library.unt.edu/ark:/67531/