New York City’s classic pre-war co-ops are in an elegant class by themselves, with beamed high ceilings, big casement windows, entry halls and galleries, maid’s rooms and gracious spaces in general. The more interesting among them tend to be those in which the customized luxury of their longtime residents has been preserved. Such is case with this spacious duplex at 322 East 57th Street in Sutton Place (where you’ll find a lot of preserved customized luxury). The listing describes the three-bedroom deco-era co-op, listed for $5.195 million, as “exquisite, dramatic and unique.” Designed in 1933 by renowned architect Joseph Urban, the 3,300 square-foot apartment was for 40 years the home of the late Senator Jacob Javits and his wife, Marian, who died earlier this year. And while it’s likely that there are many updates to be made, there are also many surprising details that have returned with today’s trends.