| Id Number | 250 |
| Object Title | Low-Speed Anemometer |
| Manufacturer | Casella London |
| Date of Object | Unknown |
| Model | Unknown |
| Serial Number | C 5533 |
| Dimensions | 9 x 8 x 7 cm; 3 2/3'' x 3 1/8'' x 2 3/4'' |
| Material | Metal; Glass; Plastic |
| Id Number | 261 |
| Object Title | Handheld Anemometer |
| Manufacturer | R. Fuess |
| Date of Object | Unknown |
| Model | Unknown |
| Serial Number | F3276 |
| Dimensions | 15 x 8.5 cm; 6'' x 3 3/8'' |
| Material | Metal |
| Id Number | 262 |
| Object Title | Florite Flow Meter |
| Manufacturer | Bacharach Inc. |
| Date of Object | Unknown |
| Model | 3035 A |
| Serial Number | Unknown |
| Dimensions | 10 x 4 cm; 4'' x 1 1/2'' |
| Material | Metal |