Practical Engineering Magazine Vol20 No499 26th August 1949

Practical Engineering Magazine Vol20 No508 28th October 1949

Practical Engineering Magazine Vol20 No506 14th October 1949

Practical Engineering Magazine Vol20 No503 23rd September 1949

Practical Engineering Magazine Vol20 No514 9th December 1949

Practical Engineering Magazine Vol20 No515 16th December 1949

Practical Engineering Magazine Vol20 No516 23rd December 1949

Lilliput Magazine October 1949