A Dutch-language instruction booklet (no. 12 in the series from the editors of "De Gracieuse") with advanced bobbin lace patterns for experienced lacemakers. It presents numbered lace edgings, insertions (tusschenzetsel), torchon lace and a few Smyrna knotted-lace edgings. Each is illustrated with actual-size or enlarged pricking diagrams and written working instructions that give the number of bobbin pairs, thread size, pin-hole numbers and stitch sequences. The front and back matter carries publisher's advertisements and a list of other titles in the series.