Model Engineer - Vol. 134 - Issue: 3348 / 5th - 18th July 1968

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

Model Engineer - Vol. 134 - Issue: 3351 / 16th - 31st August 1968

Model Engineer - Vol. 134 - Issue: 3345 / 17th - 31st May 1968

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

Model Engineer - Vol. 140 - Issue: 3499 / 18th - 31st October 1974

Model Engineer - Vol. 140 - Issue: 3481 / 18th - 31st January 1974

Model Engineer - Vol. 143 - Issue: 3557 / 18th - 31st March 1977