Model Engineer - Vol. 134 - Issue: 3349 / 19th - 31st July 1968

Model Engineer - Vol. 134 - Issue: 3355 / 18th - 31st October 1968

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

Model Engineer - Vol. 134 - Issue: 3344 / 3rd - 16th May 1968

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

Model Engineer - Vol. 140 - Issue: 3495 / 16th - 31st August 1974

Model Engineer - Vol. 139 - Issue: 3461 / 16th - 31st March 1973

Model Engineer - Vol. 142 - Issue: 3529 / 16th - 31st January 1976