| Reference number | NLB/8/49 |
| Alternative reference number | NLB/8 p33 |
| Level | Item |
| Title | Copy letter from Herbert Rix, to Messrs Dulau & Company |
| Date | 7 July 1893 |
| Description | 'Please obtain for us on approbation: Poincare's "Theorie des Tourbillons" (Paris, G. Carre, 1893)'. |
| Extent | 1p |
| Format | Carbon |
| Physical description | Typescript |
| Access status | Open |