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
San Luca Altarpiece the figures and the "azzurro Todesco" (a blue pigment derived from copper) with which to inlay them. The work was completed within that or the following year. The polyptych is located in Pinacoteca di Brera, Milan. San Luca Altarpiece The San Lucas Altarpiece, also known as the San Lucas Polyptych, is a polyptych panel painting by Northern Italian Renaissance painter Andrea Mantegna. The altarpiece is a polyptych panel painting featuring 12 figures each in his or her own arch. The seven figures in the top row flank the central figure of Jesus Christ. The five beneath flank Saint Luke. On