Unterrich von Wind-Buchsen / incerti autoris!
A German-language treatise on air guns, published around 1690 by an unidentified printer, probably in Germany, with an anonymous author. The one picture shows a row of long guns and pistols drawn in fine engraved lines with lettered reference marks, so a designer can study the mechanisms, locks and stocks of seventeenth-century firearms in an orderly, diagrammatic layout.
