This photograph appeared in "The Advocate" (Burnie, Tasmania) of Saturday 14th February 1953 under the headline "Air Survey for H.E.C." The following text appeared with the photo:

"These four men have almost completed mapping 4000 sq. miles in the Great Lake area for the Hydro-Electric Commission. Working for Adastral (sic) Aerial Surveys, they have taken 600 9x9 vertical shots from 20,000 ft, each picture covering 20 sq. miles. The survey has been assisted by the ideal weather conditions over the past two months. Left to right: Messrs. J. Harris (camera operator), R. Wilson (navigator), J. Linfoot (aircraft captain) and E. Murphy (engineer). They are snapped on the Pardoe 'drome, from where they are operating."

The window configuration suggests that the Hudson is VH-AGO.
Pardoe is the aerodrome for Devonport.

Photo: by Permission of The Advocate (via Ken Pares)