Utrecht, Vermeulen, Abraham A., Leiden, Berghaus, Johann Peter, Portrait of an unknown man, verso - stamped, The sitter is sitting on a chair next to a table. In his right hand he holds a folded sheet of paper., print, engraving, prints, engravings, P. Verloren van Themaat, recto lower left - handwritten, height 432 mm, width 345 mm, 1810-04-18 - 1870-10-23, print maker, printmaker, 1857-10-28 - 1857-10-28, paper, papier, chine collé, lithography (technique), Dutch, after a photo by