Ed,
https://www.ebay.de/itm/2-xFOTO-FLUG...EAAOSwd0tdne2g
Many thanks. You have found the culprit at last..........the German who cuts the serial numbers from RAF aircraft making it impossible for us to identify them !
This is Blenheim V5595 YH-P of 21 Squadron, lost on 18 July 1941. Shot down by ship's flak off Gravelines. Years ago there was another EBay image of this wreck showing the serial number before it was cut out.
See also 'RAF Bomber Command Losses 1941' by Bill Chorley.
Regards,
Martin Gleeson.