Mk.1 Sight Postwar or Wartime?

[Hambone]

Appreciate any help IDing this Mk.1 Fazakerley sight as wartime or postwar. Thanks.

Update: sorry, checked advanced settings and uploaded pics. One is of an early Poole on a trials No.4 sold at auction, allegedly all original. The next is this one on my ROFM early 1942. The rifle has been back to depot as it as a lined through and numbered magazine to match. No import markings. I think it may have an "England" early import marking. My query is to determine whether this Mk.1 Poole sight was wartime or postwar. Thank you.

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