41 (F) Squadron, RAF – missing relic

The attached picture shows some pilots of 41 (F) Squadron signing their names on a prop. in 1940 I think. The picture was taken during the Battle of Britian either a Catterick or at Hornchurch. The question is – where is the prop now? I would love to see it in the flesh. Is it languishing in some dark corner of a museum or is it tucked away very snugly in someones attic? My father’s name ( PO E A Shipman) appears 9th from the top. Indeed any pictures of 41 Squadron from this time or earlier would be interesting to see. Some other pics. relevant to 41 Squadron are in my book “One of The Few”. If anyone can help this would be appreciated. John Shipman.