The History of Medicine Collection owns seven fugitive sheets from the 16th century catologed by Andrea Carlino in Paper Bodies. Studying so many variations of similar prints done by different publishing houses highlights the printing and production techniques used at that time. These works show incredible detail of the internal organs and have very small parts that have survived for almost five centuries. Shown here is a "flapless" fugitive sheet (which probably once had flaps.) Along with the 7 fugutive sheets, the History of Medicine also owns The Four Seasons, a one of a kind set of early flap anatomy, which is available to view online. Many other fugitive sheets can be found on various websites listed on the links page.
This image from Spratt's Obstetric's tables shows the simple technology of layering multiple parts on top of each other; each sheet shows a different stage of the process. In this volume the flaps work well together as the bottom sheet is actually two sheets adhered together with an area of loss taken out at the place of the flaps, designed to make room for all of the extra paper. This Spratt can be compared with the Witkowski flap anatomy which uses thin paper and the pieces are of multiple shapes and have interlocking mechanisms that act more like a "pop up" as you open the separate parts-and take up as much space as necessary.