original early 20th century yellow cast brass lasalle hotel interior passage door monogrammed doorknob salvaged from the old beaux-arts style lasalle hotel built in 1909. the guestroom doorknob features a custom calligraphic design specifically made for the hotel. manufactured by the yale & towne co., stamford, ct. the hotel was designed by the architectural firm holabird & roche. during the first half of the twentieth century, few chicago hotels rivaled the grand hotel lasalle in the heart of chicago's government and financial district. the twenty-two story structure, located on the northwest corner of lasalle and madison streets, was built in 1909. it was touted as the finest, safest, and most modern hotel anywhere outside new york city. it remained in operation until july of 1976. the hotel was demolished (cleveland wrecking co.) soon thereafter (1977). the site is now occupied by the two north lasalle office building. uniform surface patina. measures approximately 2 1/2 inches in diameter.