D989/2/6 - Envelope describing conditions when [? D989/2/5] was taken: 'Leahurst March 25 '49 700ft., ? 4p.m. Sky clear, edge of heavy industrial haze over B[irken]head up to 1500ft.' - Spring 1949
| Archive level description: | Item |
|---|---|
| Physical Description: | envelope |
| Date: | Spring 1949 |
|---|---|
| Reference Number: | D989/2/6 |