WW2 Australian Army Felt Cloth Flash Battalion Designation Patch Formation Sign - Forestry Companies?

Australian and of WW2 vintage, identified as relating to the Forestry units. Many thanks to Mike who provided the following possible identification:

Red square on a point on a blue square within a grey border) is for Forestry Companies 1940-1941, Australian Forestry Group 1941-1943 and RAE (Forestry) 1943-1946.

Reference Glyde, K. (1999), "DISTINGUISHING COLOUR PATCHES of the AUSTRALIAN MILITARY FORCES 1915 – 1951 - A reference guide", No 668, text p. 96 (ISBN: 0-6460-36640-8).

Comm FB

Code: 66799