| Reference number | NLB/47/228 |
| Alternative reference number | NLB/47 p139 |
| Level | Item |
| Title | Copy letter from Robert William Frederick Harrison to the Secretary, the Iron and Steel Institute |
| Date | 21 December 1912 |
| Description | 'I am much obliged by your letter of yesterday informing me of the nomination of Sir Hugh Bell to serve on the General Board of the National Physical Laboratory.' |
| Extent | 1p |
| Format | Carbon |
| Access status | Open |