They're Proud of their New Rolls Royce Engine

Probably RAF Marham 1938, just after re-opening.

My late father LAC Thomas Barker (2nd left) in photo RAF18 and behind his camera for photo RAF17.

See this thread for further info

Anyone able to identify this particular RR engine – I can only have a guess at the Kestrel VI for the Hendon bombers which he worked on at that time.

Just in case you cannot read the detail on the photos. Top plate marked ROLLS ROYCE
Magneto cover marked WATFORD MAGNETO ROTAK? LONDON NW 10