References available upon request. To ensure the strictest confidentiality and to protect our clients’ privacy, McDonough Fine Art Appraisals, LLC does not disclose the names of clients or institutions that have engaged its services or have used its appraisals.

​Image Credit: Juan Gris (Spanish, 1887–1927), Glass and Checkerboard, c. 1917 (detail). Collection: National Gallery of Art (License: CC0)​