Originally the gypsy cob was a horse used to pull gypsy caravans. They were usually coloured to stop the army taking them as mounts (army didn't go for coloureds!) and usually had lots of feather and mane and tail.
A vanner was a working horse; usually plain to look at and most usually not coloured. They were used to pull bakery vans and such - hence the name 'vanner'. They averaged around 16hh and were often not good quality horses, being just basic workhorses.
I may sound a bit stupid hear so pleas dont laugh at me...
Are Gypsy and Traditionals the same? Just good to know for the future?
(never had anything to do with cobs really)