This 17-story, 40-unit cooperative apartment building, clad entirely in limestone, at 19 East 72^nd Street on the northwest corner at 72^nd Street probably has the best base in the city.

There are many, although not enough, limestone-clad luxury apartment buildings in the city. Such facades, in fact, probably are the easiest clue that an apartment is truly "luxury," which is not to imply that brick and glass structures are automatically not "luxury."

Many fine apartment buildings may only have limestone bases and most are rusticated, that is sharply or roughly delineated as large blocks, usually in a quite bold, horizontal pattern following  the model of many Italian Renaissance palazzos.

Here, the magnificent, sinuous, very graceful and subtle arcs of the base’s curves are superbly proportioned and soften what would otherwise be the traditionally hard edges of the building.

The vertical curves, which are limited to the lower three stories, give the otherwise quite formal building an undeniable and memorable air of graciousness. They are a constant reminder that too many developers, architects and particularly building managers are contemptuous of pedestrians and their occasional need or desire to lean, sit or perch against or on a building and that curved surfaces are more inviting than spikes, or hard edges.

The use of curves in modern architecture was fairly uncommon simply because it is not "industry-standard" and costs more. The huge popularity of architect Frank Gehry's geometric convolutions, such as in the Guggenheim Museum in Bilbao, Spain, however, has encouraged more usage of curves.

The rectilinear street grid of most of Manhattan, of course, is still very influential, almost as much as the city's building code and the economic realities of development.

This building's canopied entrance is framed with very pleasant bas-relief sculptures of animals by C. Paul Jennewein and there is a pleasant garden visible from the lobby.

The top of the building, which was completed in 1937 and converted to a cooperative in 1949, has some unusual windows, reflecting some unusual apartments, although the facade above the base is quite plain.

The building was designed by Rosario Candela and Mott B. Schmidt for John Thomas Smith who occupied the west half of the 14^th and 15^th floors.

It replaced the very large and impressive 9-story town house of Charles Tiffany and Louis Comfort Tiffany of jewelry and Art Nouveau lamp fame

Because 72nd is a Central Park transverse road as well as a major cross-town street, there is considerable traffic at this location, which is convenient to famous boutiques on Madison Avenue and many leading art galleries and museums.