Unidentified Colymbus ? Well finished painting; many notes, including: "?diver" (Sotheran note), "not on stone," "Never published / young bird," "For particulars respecting this drawing see John Michell from letter in MSS. Shot by him in Forcett Park nov 72," "3/3/" (Sotheran price). Text to Colymbus in Birds of Great Britain mentions variations in plumage of immature birds. Artist's name(s): Hart, William Matthew[?].