Jason Jacques has traveled throughout the world, in person and through the ether, to amass one of the broadest collections of Art Nouveau and Japonist pottery in the world. What you see in the gallery is only part of his holdings. There is also an off-site vault where he stores more than 400 additional pieces. This allows for a constantly changing ceramic landscape at 29 East 73rd St. No two days are alike at the Jason Jacques Gallery.