Exhibited: The Lightbox, Woking, Out of the Shadows, 2020, cat 62
Douglas A-20 Havocs were American Medium bombers. The RAF called them Bostons. They came in numerous different versions with different glazing in the nose. These have a perspex canopy in the nose, but some had a covered nose with four machine-guns positioned there.
We are grateful to Andrew Cormack for assistance.