WIWOC
Try this link
WWW for black and white pictures for an original cockpit - in these the dial rings look a different colour but look at the colour picture and you'll see why the black and white looks different but actually isn't. So from this I expect the T10s to come straight from DHC with black cockpits.
All of the Chippies I've ever been in have black cockpits. If you want to see some of the finest preserved ones there are no less than 4 on Halton's airfield (1 being a Supermunk) - give the Airfield Manager a call to come and have a look. He can also contact their owners if you want to take detailed photographs.
All the best
LJ