| Reference number | NLB/5/771 |
| Alternative reference number | NLB/5 p308 |
| Level | Item |
| Title | Copy letter from [Herbert Rix], to Mr Collings, 172 Strand |
| Date | 7 October 1891 |
| Description | 'I suppose the enclosed sheets illusts [illustrations] criticised by Prof Ayrton [Professor William Edward Ayrton] are zincos. Please tell me whether the faults he finds are due to rough proof and hasty printing, or whether they will need new blocks to rectify the defects'. |
| Extent | 1p |
| Format | Carbon |
| Access status | Open |