Wooden block with metal printing plate nailed on top. Used to produce half-tone pictures featured in Starling's 1909 booklet about the new Institute of Physiology Picture of the inside of the laboratory. Copper plate is stained dark, and the wood closest to it is stained black.
- Starling, Ernest Henry, Description of the New institute of Physiology at University College 1909, Page 12. Fig 5: "Students Laboratory" (Histology & Experimental Physiology)