The Joe Colwin Collection and More! Hradil Auction Co. (HAC) in Business Since 1987 with over 5000 Auctions Conducted. If You Cannot Complete Purchase, Just Watch. Purchases Over $1000 will require cashier's check or bank wire, this is not negotiable. Specializing in Complete Household Liquidation for those moving, retiring or settling an estate focusing on sports cards, comics and memorabilia. We hold a Texas Auctioneer License (#9397 since 1987), a Real Estate License and More!...