Whatever kind of insigne it may be - a nice flower, indeed...the colouration of the lip, especially, seems almost mahogany and nicely saturated!
'Harefield Hall' is btw. a triploid, so if you post measures of the size of the flower and of the leaf span, maybe the very knowledgeable crowd in here, could help to shed some light on the more precise identity of your clone!
Kind regards,
Jens, Copenhagen