Jan van der Heyden, ‘An Architectural Fantasy’, ca. 1670, National Gallery of Art, Washington, D.C.
overall: 49.7 x 70.7 cm (19 9/16 x 27 13/16 in.)  framed: 69.2 x 90.1 x 6.3 cm (27 1/4 x 35 1/2 x 2 1/2 in.)

About Jan van der Heyden