Object class
- Bifaces (stone tools)1,679
- Binoculars3
- Bird beaks4
- Bird bones5,108
- Bird claws3
- Bird motifs117
- Bird remains5,143
- Bird skins19
- Bird traps10
- Birdcages (animal containers)6
- Bishops (chess pieces)7
- Bits (bridle components)6
- Bits (tool components)1
- Black Mesa Black-on-white (1000–1100 AD)6
- Black Mesa Gray5
- Black Mesa Red3
- Black Mesa buff type (ca. 700–1000 AD)9
- Black Mesa types9
- Black-and-white films (visual works)229
- Black-and-white negatives35,122