| Reference number | NLB/4/740 |
| Alternative reference number | NLB/4 p303 |
| Level | Item |
| Title | Copy letter from an unknown correspondent, to the Cambridge Scientific Instrument Company |
| Date | 14 October 1890 |
| Description | 'Herewith Dr Paterson's nine plates for press. Please print 1075 copies of each plate'. |
| Extent | 1p |
| Format | Carbon |
| Access status | Open |