Can anyone help me identify this gun sight?

[JonnyBowler]

Hi Godwin

Please accept my sincere apologies for taking so long to respond to your post (I've just started my own business, so I've not had much time for anything else over the last few weeks!)

You have confirmed my suspicions that the sight is not from a Bofors L60.

Not that it makes much difference now, but apparently the sight apparently has two serial or part number markings on it 'A/2186' and 'LMSD62'. I mention this, out of curiosity, in case someone here can shed some light on what kind of gun the sight might have come from... Perhaps some other British WW2 artillery gun? (maybe the heavy 3.75 inch AA gun?)

Many thanks for sharing your wisdom!

Jon