My guess is that it'll be a 1920 Coventry Climax head. They made lots of engines in that period for 'assemblers'.

I've no idea what it is. Just to note Rosengart unlike other foreign built sevens did not have mirror built engines and were also right hand drive, atleast until the Adler company got involved circa 1936

Location: Oakley hants

I believe it may be a Triumph Super 7 cylinder head

http://car-from-uk.com/sale.php?id=143412


Regards

Ben

Thanks Ben, mystery solved!

I recall that Stanley Edge told me that he worked briefly on the Triumph after he left Longbridge.

Location: Bristol