The Lancaster trim wheel is indeed the twenty rib A.S.102 type (Black or brown Bakelite.)
The only other aircraft fitted with this type were the Hawker Typhoon/Tempest/Sea Fury… (As far as we can ascertain.)
This one is from our Hawker Typhoon 1B cockpit project.
(http://www.jetagemuseum.org/Typhoon/RestorationNews.aspx)

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