Model Engineer - Vol. 134 - Issue: 3346 / 7th - 20th June 1968

Model Engineer - Vol. 134 - Issue: 3347 / 21st - 30th June 1968

Model Engineer - Vol. 134 - Issue: 3357 / 15th - 30th November 1968

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

Model Engineer - Vol. 140 - Issue: 3497 / 20th - 30th September 1974

Model Engineer - Vol. 141 - Issue: 3515 / 20th - 30th June 1975

Model Engineer - Vol. 135 - Issue: 3371 / 20th - 30th June 1969

Model Engineer - Vol. 134 - Issue: 3337 / 19th January 1968