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

Model Engineer - Vol. 139 - Issue: 3474 / 5th - 18th October 1973

Model Engineer - Vol. 143 - Issue: 3566 / 5th - 18th August 1977

Model Engineer - Vol. 140 - Issue: 3492 / 5th - 18th July 1974

Model Engineer - Vol. 140 - Issue: 3486 / 5th - 18th April 1974

Model Engineer - Vol. 142 - Issue: 3548 / 5th - 18th November 1976

Model Engineer - Vol. 141 - Issue: 3520 / 5th - 18th September 1975

Model Engineer - Vol. 141 - Issue: 3526 / 5th - 18th December 1975