Item 2-4 - Somme 'message maps'

James Bayly Watchorn (3 March 1921 - 4 October 1943) was the second and youngest son of Erskine Clarence Watchorn and Mary Wylly Bayly. He was educated at the Hutchins School, and began his law course at the Tasmanian University. He enlisted in the RAAF in December 1940 and trained in Southern Rhodesia. He completed his training in England, and
was stationed in West Africa for 12 months, before being posted back to England. He was killed whilst testing Typhoon fighters in England in 1943.
See: https://www.awm.gov.au/collection/R1718110/