Armstrong Whitworth AW38 Gun Turret

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Anyone know of a surplus Armstrong Whitworth AW38 Gun Turret (glass house or glass house and seat/gun frame) available for purchase / acquisition?

This is the dorsal turret of the Avro Anson Mark I and the nose turret on some marks of AW Whitleys.

Here is a photo of the one on display in the RAF Museum Hendon.

http://www.flickr.com/photos/8832436@N04/3461471864/in/photostream/

Regards

Mark Pilkington