Two Triangles within a Square #2 by Vogel, Herbert, Mr. and Mrs., Mangold, Robert, Bruce Fund, Ailsa Mellon, National Gallery of Art, Patrons' Permanent Fund — VisualArtsDB

Two Triangles within a Square #2 by Vogel, Herbert, Mr. and Mrs., Mangold, Robert, Bruce Fund, Ailsa Mellon, National Gallery of Art, Patrons' Permanent Fund — VisualArtsDB