Model Engineer - Vol. 134 - Issue: 3338 / 2nd - 15th February 1968

Model Engineer - Vol. 134 - Issue: 3341 / 15th March 1968

Model Engineer - Vol. 134 - Issue: 3343 / 15th April 1968

Model Engineer - Vol. 134 - Issue: 3342 / 15th April 1968

Model Engineer - Vol. 134 - Issue: 3357 / 15th - 30th November 1968

Model Engineer - Vol. 140 - Issue: 3494 / 2nd - 15th August 1974

Model Engineer - Vol. 139 - Issue: 3476 / 2nd - 15th November 1973

Model Engineer - Vol. 139 - Issue: 3460 / 2nd - 15th March 1973