Hi Dave .
Hopefully this is some help ? . Firstly Welcome to the fastest growing Forum on the net !. :lol:
Dixons Medals had one ' Drummer ' .W.G.Woods 2398 2 / 24th 77-78-79 with Documents for 1, 450 GBP'S back on the 16 / 3 / 12 . It appears it's been sold .
Scroll down to Corp.Bonner .
They are the only one's that I've found for sale recently . The Bonner Medal at $ 2,300 USD equates to 1,426 GBP'S.
Liverpool Medals sold 1 back in 2008 for 1,200 GBP'S , and 2 in 09 for 1,100 GBP'S each . So with this info I suppose
1,400 GBP'S seems to be close to the Mark . Bit Pricey though .