The Rembrandt House Museum is famous for its collection of Rembrant etchings. These four postcards show the process of etching: all the required materials; the copper plate to put the image B91 The Prodigal Son on; the print in mirror image; the different etching lines that can be made. Each card is 10.5 x 15 cm. The colour card is made of 260 grams paper, the black and white is made of 400 grams paper.