Harry Minting was a manager at Wheatstone in the 1950s – he talks about his life and career at Wheatstone here. While at Wheatstone, he produced a 10-lesson correspondence course for the English concertina. His son Robert Minting has generously allowed the ICA to share the course here. The lessons, in PDF format, are linked below.
Robert Minting says he would appreciate it if those who use the course could provide feedback to him on “whether they found it interesting or useful — and hopefully fun!” He can be contacted at minting@concertina.org.