M272064. A hairnet from St. Truiden with lacis fleur de lis and bird designs. Also from St. Truiden and found at the Royal Institute of Cultural Heritage in Belgium. Google Translate suggests that the plain mesh is red dyed with madder and the embroidery is white and yellow dyed with weld.
This is lacework, not crochet. "Apron. White linen, border of punto in aria. Ties of fine cord with ends of punto in aria. Italy, late 16th or early 17th century." Lace and Lace Making, Marian Powys, Dover Publications, 2002
haruenishikawa: Italy 1600-1660 (made) Piccolomini, Gullia (maker) Materials and Techniques: Linen, embroidered with linen and metal thread in satin stitch, with cutwork, drawn thread work and buttonholed bars via media.vam.ac.uk