Link to images: https://www.dropbox.com/s/ppu0fnsafdbvuzi/2445-JDK.zip?dl=0 New York— On Tuesday, May 2, Swann Galleries will offer Old Master Through Modern Prints, with a prodigious selection of works completed before the nineteenth century. Martin Schongauer, A Censer, engraving, circa 1485. Estimate $120,000 to $180,000 The top lot of the sale is an astoundingly detailed engraving, A Censer , circa 1485, by Martin Schongauer. Scholars believe that Schongauer made this intricate work for the sole purpose of showing off his technical virtuosity. Only two other impressions have been offered at auction in the last 75 years, and many of the 28 known impressions are in institutional collections. In excellent condition with no sign of wear, the present impression is valued at $120,000 to $180,000. Martin Schongauer, The Madonna and Child with an Apple, engraving circa 1475. Estimate $70,000 to $100,000. Schongauer is also represented in the sale by the circa 1475 engraving The Madon...