| Reference number | NLB/21/37 |
| Alternative reference number | NLB/21 p22 |
| Level | Item |
| Title | Copy letter from an unknown correspondent, to Messrs Harrison & Sons |
| Date | 19 July 1900 |
| Description | 'Please add to your Proceedings list the following institution:- Die Sternwarte Des Eidg. Polytechnikums [,] Zurich[,] Switzerland'. |
| Extent | 1p |
| Format | Carbon |
| Physical description | Manuscript |
| Access status | Open |