[Interior of 800 Madison Avenue.]

[Interior of 800 Madison Avenue.]

[Interior of 831 Madison Avenue.]

[Interior of 831 Madison Avenue.]

[Interior of 831 Madison Avenue.]

[Interior of 800 Park Avenue.]

[Interior of 831 Madison Avenue.]

[Interior of 800 Park Avenue.]

[Living room of 800 Park Avenue.]

[Interior of 755 Park Avenue.]

[800 Park Avenue.]

667 Madison Avenue. W.A. DuBois residence, Parlor.

[800 Park Avenue.]

[800 Park Avenue.]

[800 Park Avenue.]

[800 Park Avenue.]

[800 Park Avenue.]

800 Park Avenue

[800 Park Avenue.]

[800 Park Avenue.]