Object class
- Assegais2 objects
- Athena96 objects
- Atlas (cervical vertebra)5 objects
- Atlatl spears3 objects
- Atlatl weights4 objects
- Atlatls76 objects
- Atomizers3 objects
- Audio cylinders4,083 objects
- Audio reel tapes4,253 objects
- Audiocassettes4 objects
- Audiotapes5 objects
- Auditory bullae11 objects
- Aurignacian (ca. 43,000–26,000 BP)61 objects
- Aurora1 objects
- Autlan polychrome ware64 objects
- Autlan style64 objects
- Awls5,060 objects
- Axes (stone tools)470 objects
- Axes (tools)292 objects
- Axes (weapons)33 objects