Amazing what's on the net: Youtube : Allenby Aka Lord Allgiby (1929) 1929 Windsor County School cadet corps being inspected by Allenby. They are wearing Berkshire Regiment cap badges. Rather unsurprisingly they were affiliated to the Berkshire Regt as one of their cadet coys.
http://digital.nls.uk/british-milita...chive/88784479