I find the photo's of the Bofors very interesting, brings back memories of my time when I served in 113 Light Anti aircraft Battery (a CMF unit) in the mid to late 1960's.

Our Bofor's were the Mk12's with the gun No. 2 (the Layer) controlling both the traverse and elevation, as our Bofors were also powered. I only remember a gunsight called a "Peanut" sight because of the shape of the graticules in the viewfinder which corresponded with the targets speed. All the Layer had to do was line up the target on the correct graticule, the targets speed was indicated to him by the Gun No. 1.(the Sargent). I do not remember Gyro controlled gunsights, but then again the regular army may have been supplied with these.

I remember all to well the "Indonesian confrontation" and the possible threat to Australia, when I first joined 113 Battery in 1964.
We also used the Inter Mk3's as a gun tower but in my opinion they were not as good as the earlier GMC's and Studebakers.