Does anyone know where I might find information, and preferably pictures about the Mobile Air Compressors, and associated Pneumatic Drills used in the quarrying and mining industry up until around 1950 ?
Having limited access to resources it would be better if it was available on the internet. So far I have been on Wikipedia etc, and found one picture of each.
Thanks
Paul
Having limited access to resources it would be better if it was available on the internet. So far I have been on Wikipedia etc, and found one picture of each.
Thanks
Paul