WW2 British '37 Pattern Labelled Battledress Trousers

An excellent pair of the '37 pattern battledress trousers complete with the often removed ankle button tabs & clothing label to waist.These trousers have all of their brass dished buttons to front fly / waistband & ankle tabs with four upward buttoned belt loops . Label gives these as a size 12 ( See image ) . There is a date on the label however it was ink stamped on & blurred at its time of application so illegible. I can find no moth or damage.Having measured the trousers I find the approximate measurement of 30-32 waist with an approx 31in leg.