http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
No. 321-358 numbered also series 3, 1944; no. 359-420 numbered also 1945 series, no. 1-3; no. 421-531 numbered also 1946 series, no. 1-6; no. 532-576? numbered also 1947 series, no. 1-3?