These cookies are absolutely essential for our website to function properly.
We use Google Analytics to measure how you use the website so we can improve it based on user needs.
These cookies may be set by third party websites and do things like measure how you view YouTube videos.
Black print on red card cover. What Every Mining Man Should Know, No. 4 - 'The Safe Use of Exposives in Coal Mines.' Issued by the Safety in Mines Research Board. Dated 1931. 63 pages with b & w photographs and diagrams throughout.
