Formats
- Lectures.6
- Letter books.6
- Programs (documents)6
- Receipts (financial records)6
- Calendars.5
- Digital audio files.5
- Drawings (visual works)5
- Ephemera.5
- Essays.5
- Invitations.5
- Phonograph records.5
- Prints.5
- Accounts.4
- Advertisements.4
- Cartes-de-visite (card photographs)4
- Color slides.4
- Correspondence.4
- Daguerreotypes.4
- Digital audio formats.4
- Glass negatives.4