Platinum Sussex - roo. He's not a Silver Sussex as they are black with white hackles
https://www.google.com.au/search?q=silver+sussex&rlz=1C1ASUM_enAU468AU468&espv=210&es_sm=122&tbm=isch&tbo=u&source=univ&sa=X&ei=Xf0TU5jPE4SFkAXi54Eo&ved=0CCYQsAQ&biw=1680&bih=989
Platinum is not a recognised...