Any ideas on this Achilles wireless setup

[Jack Geratic]

british-troops-take-shelter-near-an-m10-wolverine-tank-v0-hhhbf12mpg4b1.jpg 3rd Canadian Anti-Tank Regiment.jpeg d-day-british-forces-during-the-invasion-of-normandy-6-june-1944-an-m10-wolverine-3-inch-self-pr.jpg


I think on the front is something like the example in the link below. It states it was telescopic with a height of 21 inches when closed, and could be raised to 90 inches.
https://thecanadiansoldier.com/produ...-radio-antenna

m10 hull side aerial.jpg

The mast on the hull side looks much heavier - was this the standard B type aerial, but In this instance sitting atop an extension?