Katalog der Alten Meister
A 1918 catalogue of the old master paintings held by the Hamburger Kunsthalle, published in Hamburg by Lütcke & Wulff for museum visitors and art scholars. The four pictures are close crops of handwritten and scribbled marks: a monogram with the date 1622, a looping flourish, and a signature reading F. Gysbrechts, the kind of painter's mark a designer could study for lettering and hand-drawn ornament.
