Picture of a graduated cylinder and a syringe with a strip of plastic with beads on the edges wrapped around it. Stamped Ipse Fecit Fotomontage. By and for W. J. J. van Rossum.
Bookplate: A squirming convoluted pile of babies are circumscribed by an ellipse. Various books and medical instruments (trephine, tuning fork, forceps, reflex hammer) are scattered beyond the border. Double serpents are twined around a winged staff.
Bookplate: Bearded scholar reading in a grape arbor supported by doric columns. Foxglove growing at left. Greek inscription on cross beam [Proverbs 8:21].
Bookplate: Winged Caduceus with two serpents inside an oval wreath, flanked by books. An oak branch with acorns is laid across a third book lying beneath the wreath.
Bookplate: Naked male infant standing atop a pillar urinating into a test tube attached by a clamp to a stand. Around the stand and test tube is wound a snake.