CHICAGO--(BUSINESS WIRE)--GE Capital, Corporate Finance today announced it is serving as administrative and collateral agent on $1.335 billion in senior credit facilities for auction house Sotheby’s (NYSE:BID). The new facilities include a $485 million credit line increase that will be used for growth in Sotheby’s finance business. GE Capital Markets served as joint lead arranger and joint book runner on the facilities. Founded in 1744, Sotheby’s is one of the world’s largest auctioneers of aut