Pyrrhula erythaca -- Grey-headed Bullfinch. Alternate name on piece: Pyrrhula erythacus [Beavan's bullfinch] Tracing on tissue. Correction markings and notes by Gould. "Put on the stone the same way" is a little puzzling since only a request to reverse the image on the stone would have been necessary; in any event the published image is reversed, as is normal to the process. Artist's name(s): Gould, John; Hart, William Matthew.