An update regarding the earlier topic “Wax Seals”;
I made posts about the seals at rec.heraldry, the Heraldry society of Scotland and the International Association of Amateur Heralds. My colleague, John Tunesi of Liongam, identified the Arms as those of DAUBUZ.
Arms: Ermine a chevron gules between three acorns slipped and pendent proper [in chief a crescent for difference]
Crest: A griffin’s head with wings addorsed [no tinctures given for the crest]
Source: Burke’s General Armory – p. 264 & Papworth’s Ordinary – p. 428
An email from Mark Aronson of Yale University advised that their Curator of Paintings, Angus Trumble, had found a connection to John Claude Daubuz of Killiow, Cornwall. He also kindly provided a photograph of Gainsborough’s “The Cottage Door”