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

Model Engineer - Vol. 142 - Issue: 3539 / 18th - 30th June 1976

Model Engineer - Vol. 142 - Issue: 3533 / 19th - 31st March 1976

Model Engineer - Vol. 142 - Issue: 3530 / 6th - 19th February 1976

Model Engineer - Vol. 142 - Issue: 3535 / 16th - 30th April 1976

Model Engineer - Vol. 142 - Issue: 3542 / 6th - 19th August 1976

Model Engineer - Vol. 142 - Issue: 3545 / 17th - 30th September 1976

Model Engineer - Vol. 147 - Issue: 3668 / 6th - 19th November 1981