| Reference number | NLB/7/620 |
| Alternative reference number | NLB/7 p293 |
| Level | Item |
| Title | Copy letter from Herbert Rix, to George Higgs, 467 West Derby Road, Liverpool |
| Date | 24 March 1893 |
| Description | Asks if the figure in Higgs' recent paper may be cut white on black, i.e. whether the lines may be reversed. It is of course easier to make a white on black block, but if the lines are black in nature it might be misleading. |
| Extent | 1p |
| Format | Carbon |
| Access status | Open |