Model Engineer - Vol. 134 - Issue: 3353 / 20th - 30th September 1968

Model Engineer - Vol. 134 - Issue: 3359 / 20th - 31st December 1968

Model Engineer - Vol. 139 - Issue: 3478 / 7th - 20th December 1973

Model Engineer - Vol. 141 - Issue: 3506 / 7th - 20th February 1975

Model Engineer - Vol. 143 - Issue: 3570 / 7th - 20th October 1977

Model Engineer - Vol. 143 - Issue: 3552 / 7th - 20th January 1977

Model Engineer - Vol. 141 - Issue: 3524 / 7th - 20th November 1975

Model Engineer - Vol. 141 - Issue: 3508 / 7th - 20th March 1975