So, I'm going to consign some items to an auction and am wondering something: who pays for shipping from the consigner to the auction house?

I've done a few auctions of art in the past and usually the auction house would send me a Fed-Ex number to ship my items to them. Is it the same in sports auctions or does the consigner pay to ship/insure them to the auctioneer? Does it differ by auction house (Lelands, Gray Flannel, Huggins & Scott, etc)?