| Reference number | NLB/56/687 |
| Alternative reference number | NLB/56 p389 |
| Level | Item |
| Title | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Professor Karl Pearson, FRS |
| Date | 15 April 1919 |
| Description | Informs Professor Karl Pearson that he has made enquiries and there does not seem to be any engraved reproduction of the portrait of Oldenburg, only a photographic reproduction made for the old edition of the 'Record'. |
| Extent | 1p |
| Format | Carbon |
| Access status | Open |