Aerial Mount
Lynn, the mount was originally for a Wireless Set No.11; British, and later Canadian, made. The set is roughly the size of a 19 set which soon replaced it (I will post a picture when I find it). The aerial mount of the type shown had a large porcelin base attached to a ring with 'teeth' to set it in any direction. The aerial sections, ("C sections", I think) as you indicate, are 7/8" diameter by 4 feet long, two of which make an 8 foot aerial. On Mk.1 Universal carriers, this aerial could be upright, or folded forward along the armour to catch on the u-shaped bracket just aft of the division plate. A spring below the base attached to a bracket on the side kept tension. Often, a large rubber condom-like insulator covered the whole aerial base with only the rods sticking out the top. With the replacement of the 11 set by 19 sets, the 11 set aerial base was replaced with a standard 19 set rubber base (No.8 for Canadians, No.10 for the British). I have made drawings of the folding aerial base I can send you, and have one original 11 set base if you need details.
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