Trades in A Company

The following trades made up A Coy between 1965 and 1968 when I was there as a young lad, the same trades were still in that company I believe when I went back as an instructor in 1976
Carpenters and Joiners.
Painters and Decorators.
And the 5 Survey Branch trades:
Field Survey Technician.
Air Survey Technician.
Cartographic Technician.
Photographic Technician.
Print Technician.