| Id Number | 286 |
| Object Title | Piché Evaporimeter |
| Manufacturer | Gen Manufacturing Co. |
| Date of Object | Unknown |
| Model | 644 |
| Serial Number | Unknown |
| Dimensions | 44.5 x 45.5 x 20 cm; 17 1/2'' x 18'' x 8'' |
| Material | Metal |
| Id Number | 287 |
| Object Title | Piché Evaporimeter |
| Manufacturer | Gen Manufacturing Co. |
| Date of Object | Unknown |
| Model | Unknown |
| Serial Number | Unknown |
| Dimensions | 47.5 x 41 x 20.5 cm; 18 1/2'' x 16'' x 8'' |
| Material | Metal; Plastic |
| Id Number | 298 |
| Object Title | Light Intensity Indicator |
| Manufacturer | Unknown |
| Date of Object | Unknown |
| Model | Unknown |
| Serial Number | Unknown |
| Dimensions | 12.5 x 8 cm; 4 7/8'' x 3 1/8'' |
| Material | Glass |