| RefNo | HS/6/481 | 
| Level | Item | 
| Title | Letter, from Pompilio Decuppis to Sir John Herschel, dated at Rome | 
| Creator | Decuppis; Pompilio (fl. 1839) | 
| Recipient | John Frederick William Herschel | 
| Date | 4 May 1839 | 
| Description | Autograph letter signed by sender. Discusses elements of telescopic mirror making, including the curving the glass. Inquires about methods of telescope, lens, and mirror makers in England. | 
| Language | Italian | 
| Extent | 4pp | 
| Format | Manuscript | 
| Place origin | Rome, Italy | 
| Origin coordinates | 41.893333, 12.482778 | 
| Digital images | View item on Science in the Making | 
| AccessStatus | Open | 
| URLDescription | Also available on Epsilon | 
| URL | https://epsilon.ac.uk/view/herschel/letters/Herschel7302 | 
Fellows associated with this archive
| Code | PersonName | Dates | 
| NA8238 | Herschel; Sir; John Frederick William (1792 - 1871); mathematician and astronomer | 1792 - 1871 |