ATLANTA – An enchanting collection of artworks by the renowned Pakistani artist Abdur Rahman Chughtai (1897-1975), and three screenprints signed by the iconic American pop artist Andy Warhol (1928-1987), are expected headliners at a Signature Estates and Modern & Contemporary Collections Auction planned for Jan. 2 and 3 by Ahlers & Ogletree, starting at 11 a.m. Eastern time both days. A host of important local estates will be offered.