Model Engineer - Vol. 147 - Issue: 3659 / 19th - 30th June 1981

Model Engineer - Vol. 140 - Issue: 3496 / 6th - 19th September 1974

Model Engineer - Vol. 140 - Issue: 3491 / 21st - 30th June 1974

Model Engineer - Vol. 140 - Issue: 3502 / 6th - 19th December 1974

Model Engineer - Vol. 140 - Issue: 3496 / 6th - 19th September 1974

Model Engineer - Vol. 140 - Issue: 3501 / 15th - 30th November 1974

Model Engineer - Vol. 140 - Issue: 3493 / 19th - 31st July 1974

Model Engineer - Vol. 147 - Issue: 3655 / 17th - 30th April 1981