| Reference number | NLB/6/146 |
| Alternative reference number | NLB/6 p54 |
| Level | Item |
| Title | Copy letter from an unknown correspondent, to the Cambridge Engraving Company |
| Date | 11 March 1892 |
| Description | Asks for estimate for the two enclosed plates and wonders if they could be done by zinc process. |
| Extent | 1p |
| Format | Carbon |
| Access status | Open |