Genre
- manifests (shipping records)2
- manuscripts (document genre)3,820
- manuscripts (documents)13
- maps (documents)5
- medallions (medals)11
- medals8
- medical equipment43
- medical records8
- medicine spoons1
- medicines1
- membership lists3
- memoirs13
- memorandums2
- menus7
- microscopes2
- military commissions7
- military passes18
- military records37
- miniatures (paintings)1
- mortarboards (caps)1