- Archival materials (7)
- Collection descriptions (7)
- Photographs (5)
- Correspondence (4)
- Scrapbooks (4)
- Maps (3)
- Newsletters (3)
- Brochures (2)
- Clippings (2)
- Reports (2)
- Advertisements (1)
- Annual reports (1)
- Audiotapes (1)
- Business records (1)
- Ephemera (1)
- Manuals (1)
- Memorabilia (1)
- Motion pictures (visual works) (1)
- Notebooks (1)
- Notes (1)
- Photographic prints (1)
- Postcards (1)
- Press releases (1)
- Publications (1)
- Tickets (1)
- Timetables (1)
Our collections specialists actively work on the conservation, preservation, restoration, and long-term care of the objects in our collection. From full-scale restoration projects to applying preservation techniques and doing regular assessments, these activities form a crucial part of our stewardship of the National Collection.