Mystery pictures

Hello

Some time ago Dr Howard Eastcott contacted the Isle of Skye Small Business Community website, run by a friend of mine, hoping to identify the purpose of photographs of The Cuillins and Red Hills. A total of 12 annotated photographs were found among the personal effects of his late father-in-law, an RAF navigator who in WWII was killed in action in a De Havilland Mosquito fighter bomber. Four of them are annotated “Sgurr-nan-Gillean from Blaven, Skye. HG1” (attached); “Sgurr Alasdair and Coir’ a Ghrunnda, Skye. AG3”; “The Red Hills (Lord MacDonald’s Forest) Skye. HG2” and “Sgurr Alasdair from Coire Lagan, Skye. AG4”.

According to Dr Eastcott his father-in-law never visited Skye and all other photographs that he owned were accompanied by negatives. The question is: were these pictures some form of navigational training aid?

Hope you can help