The shields of Surgeons on the ceiling of the octagon: Ruysch’s shield is in the centre Image by Paul Keller: credit – Own work, CC BY 3.0, https://commons.wikimedia.org/w/index.php?curid=5733195)
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The shields of Surgeons on the ceiling of the octagon: Ruysch’s shield is in the centre Image by Paul Keller: credit – Own work, CC BY 3.0, https://commons.wikimedia.org/w/index.php?curid=5733195)
