Mexborough and Swinton Times October 12, 1928
A Local Film Producer
Mr. Charles Hanmer, of Goldthorpe, the well-known ambulance lecturer, who has produced a number of films bearing on first aid and allied subjects, and has now completed a film entitled “The Toilers,” which deals with the life and work and environment of the coal
miner. This film is to be shown for the first time on November 5th, in Barnsley,
From YouTube one of 5 Black Diamond Films made by Charles Hanmer: