The author discusses the likely materials and techniques that Rembrandt might have used to paint this panel in the Armand Hammer Collection, Los Angeles. Most of his information was obtained from the technical reports published in Rembrandt in the Mauritshuis published in 1978 by Sijthoff & Noordhoff International Publishers B. V., Alphen aan de Rijn, The Netherlands. See also AATA 19-1255. -- AATA