Knorr: Molluscs. 1770. An original hand coloured antique copper engraving. 7″ x 9″. [NATHISp7200]

Ex Museo Schadeloockiano: Four mollusc shells from the collection of August Martin Shadelock, parson of St Lorenz Nurmberg, after drawings by Johann Keller, Professor of drawing at Erlangen.