| Id Number | 204 |
| Object Title | Wet/Dry Bulb Hygrometer |
| Manufacturer | Unknown |
| Date of Object | Unknown |
| Model | Unknown |
| Serial Number | Unknown |
| Dimensions | 23 x 10 x 2 cm; 9'' x 4'' x 3/4'' |
| Material | Wood; Metal; Glass; Spirit |
| Id Number | 229 |
| Object Title | Advertising Hygrometer |
| Manufacturer | Unknown |
| Date of Object | Unknown |
| Model | Unknown |
| Serial Number | Unknown |
| Dimensions | 14.4 x 3.75 cm; 5 3/4'' x 1 1/2'' |
| Material | Wood; Glass; Metal; Paper |
| Id Number | 251 |
| Object Title | Sling Psychrometer |
| Manufacturer | Lutz File & Tool Co. |
| Date of Object | Unknown |
| Model | Unknown |
| Serial Number | Unknown |
| Dimensions | 36 x 13.5 x 1.5 cm; 14 1/4'' x 5 1/4'' x 5/8'' |
| Material | Metal; Wood; Glass |