| Reference number | NLB/6/789 |
| Alternative reference number | NLB/6 p337 |
| Level | Item |
| Title | Copy letter from Herbert Rix, to Brin's Oxygen Company, 34 Victoria Street, S.W. |
| Date | 14 July 1892 |
| Description | In answer to the Company's memorandum of 12 July, the Society has made a careful search for the key of Mr Joly's oxygen cylinder but has failed to find it. |
| Extent | 1p |
| Format | Carbon |
| Access status | Open |