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

Model Engineer - Vol. 140 - Issue: 3498 / 4th - 17th October 1974

Model Engineer - Vol. 140 - Issue: 3480 / 4th - 17th January 1974

Model Engineer - Vol. 141 - Issue: 3516 / 4th - 17th July 1975

Model Engineer - Vol. 143 - Issue: 3572 / 4th - 17th November 1977

Model Engineer - Vol. 143 - Issue: 3556 / 4th - 17th March 1977

Model Engineer - Vol. 143 - Issue: 3554 / 4th - 17th February 1977

Model Engineer - Vol. 139 - Issue: 3464 / 4th - 17th May 1973