Model Engineer - Vol. 134 - Issue: 3340 / 1st - 14th March 1968

Model Engineer - Vol. 140 - Issue: 3500 / 1st - 14th November 1974

Model Engineer - Vol. 140 - Issue: 3482 / 1st - 14th February 1974

Model Engineer - Vol. 142 - Issue: 3546 / 1st - 14th October 1976

Model Engineer - Vol. 143 - Issue: 3564 / 1st - 14th July 1977

Model Engineer - Vol. 143 - Issue: 3558 / 1st - 14th April 1977

Model Engineer - Vol. 135 - Issue: 3374 / 1st - 14th August 1969

Model Engineer - Vol. 140 - Issue: 3484 / 1st - 14th March 1974