The answer to the March issue's Guess the Architect is ALBERT KAHN ASSOCIATES. After the Packard Automotive Plant opened in 1903 in Detroit, Kahn came up with a reinforced-concrete structural system for Building No. 10 that proved to be a pioneering technique for U.S. factories. The Packard Plant hasn't been operational since the late 1990's, but the same firm is working with developer Fernando Palazuelo to convert the former factory to mixed uses.

The answer to the February issue’s Guess the Architect is GAE AULENTI. In 1986, her Milan-based firm, working with the French office of A.C.T. Architecture, transformed the palatial Quai d’Orsay train station in Paris, designed by Victor Laloux in 1900, into the Musée d’Orsay, which exhibits art from 1848 to 1915.

The answer to the January issue’s Guess the Architect is ELIEL AND EERO SAARINEN, along with PERKINS, WHEELER & WILL (now Perkins + Will). The two offices teamed up to design the influential, modernist Crow Island School in Winnetka, Illinois, in 1940–41.

The answer to the December issue’s Guess the Architect is SHREVE, LAMB & HARMON, with William F. Lamb as the lead designer for the Empire State Building in New York City.

The answer to the November issue’s Guess the Architect is JOHN ANDREWS, who designed Gund Hall for Harvard’s Graduate School of Design (1967–72), from which he graduated in 1958. He subsequently practiced in Toronto before returning to his native country of Australia.

Guess the Architect Contest A monthly contest from the editors of RECORD asks you to guess the architect for a building of historical importance.