Granmetric Dust Samples in (Abercarn) Wind Tunnel - Smoke Test, Wind Velocity 200ft/min

Scope and Content

Original envelope annotated 'Mr Skorobohatyj, E Wales Area Dust Scientist. Granmetric Dust Samples in (Abercarn) Wind Tunnel - Smoke Test, Wind Velocity 200ft/min, 12/3/70'.

Custodial History

Original National Coal Board negative number: n/a. Original Glamorgan Archives Box number: DNCB/48/4.