Vierter Band.
This record gives little beyond a title, Vierter Band, held by the Eisenbibliothek in Schlatt, a library founded by the Georg Fischer company in Schaffhausen. The first picture is a bookplate with a red wax seal of a standing figure inside a lozenge, and the second is a small square of numbers from 1 to 10 arranged in a grid with rules between cells, which reads as a magic-square style diagram. A designer might take the seal's lozenge frame and the numeric grid as simple, compact devices for marking ownership or structuring a table.
