| Id Number | 277 |
| Object Title | Thermograph |
| Manufacturer | Kahl Scientific Instrument Corp. |
| Date of Object | Unknown |
| Model | 38 AM 180/L |
| Serial Number | 103 |
| Dimensions | 17.5 x 36.5 x 14 cm; 6 7/8'' x 14'' x 5 1/2'' |
| Material | Metal |
| Id Number | 278 |
| Object Title | Thermo-Hygrograph |
| Manufacturer | R. Fuess |
| Date of Object | Unknown |
| Model | 18r |
| Serial Number | E 601 |
| Dimensions | 31 x 33 x 13.5 cm; 12 1/8'' x 13'' x 5 1/4'' |
| Material | Metal; Glass |
| Id Number | 279 |
| Object Title | Thermograph |
| Manufacturer | Kahl Scientific Instrument Corp. |
| Date of Object | Unknown |
| Model | 38AM190/L |
| Serial Number | 075 |
| Dimensions | 17.5 x 36 x 14 cm; 6 5/8'' x 14 1/4'' x 5 1/2'' |
| Material | Metal; Glass |