Crucifixion Diptych (van der Weyden) and theorized that the diptych represented two panels of a four-panel work – either the two-panelled left shutter of an altarpiece, or its center two panels. Based on pictorial style, Tucker argued that the large size of the human figures relative to the size of the panels was more in keeping with figures on the shutters of "carved" altarpieces than painted ones. He also noted that the shutters of carved altarpieces tend to de-emphasize the deep perspective commonly seen in painted altarpieces, which was consistent with the shallow pictorial space of the diptych. The diptych's figures are almost two-thirds life
Heller Altarpiece Heller Altarpiece The Heller Altarpiece was an oil on panel triptych by German Renaissance artists Albrecht Dürer and Matthias Grünewald, executed between 1507 and 1509. The artwork was named after Jakob Heller, who ordered it. Dürer painted the interior, Grünewald the exterior. In 1615, Dürer copyist Jobst Harrich painted a duplicate, which is now at the Städel of Frankfurt. The side panels, executed by Bosch's workshop basing from his drawings, are at the Staatliche Kunsthalle of Karlsruhe. The painting was commissioned by Frankfurt merchant Jakob Heller, for the Dominican church of the city. In 1615, the central panel, the only