- aerial photographs1,681
- ledgers (account books)1,667
- plats (maps)1,662
- nitrate negatives1,420
- government records1,396
- presidential papers1,389
- tax records1,304
- periodicals1,093
- indentures1,091
- reports1,087
- monographs1,077
- deeds1,014
- broadsides (notices)1,002
- field notes983
- printed ephemera928
- legal documents924
- baseball cards898
- trade catalogs894
- land grants865
- account books857
