| Reference number | NLB/31/216 |
| Alternative reference number | NLB/31 p115a |
| Level | Item |
| Title | Copy letter from Robert William Frederick Harrison, to [Messrs Harrison & Sons] |
| Date | 10 July 1905 |
| Description | Asks the Messrs to make electors of the blocks used to illustrate Messrs Mees & Sheppard's paper on 'The Theory of Photographic Processes on the Chemical Dynamics of Development'. The charge for these is to be made to the Royal Photographic Society of Great Britain. |
| Extent | 1p |
| Format | Carbon |
| Physical description | Typescript |
| Access status | Open |