| Id Number | 138 |
| Object Title | Swing Psychrometer |
| Manufacturer | Bacharach Inc. |
| Date of Object | Unknown |
| Model | Unknown |
| Serial Number | Unknown |
| Dimensions | 20.5 x 3 cm; 8'' x 1 1/8'' |
| Material | Bakelite |
| Id Number | 160 |
| Object Title | Thermo-Hygrograph |
| Manufacturer | Negretti & Zambra |
| Date of Object | Unknown |
| Model | unknown |
| Serial Number | 32121 |
| Dimensions | 42 x 25.5 x 14.5 cm; 16 1/2'' x 10'' x 5 3/4'' |
| Material | Metal |
| Id Number | 162 |
| Object Title | Swing Psychrometer |
| Manufacturer | Fisher |
| Date of Object | Unknown |
| Model | Unknown |
| Serial Number | Unknown |
| Dimensions | 35.5 x 4.5 x 3.5 cm; 14 x 1 3/4'' x 1 1/4'' |
| Material | Metal; Wood; Glass |