A Dutch Seal?

A request for assistance from Mark Aronson, Chief Conservator of Paintings, at the Yale Center of British Art. One of the pictures on display in their current exhibition – Seascapes: Paintings and Watercolors from the U Collection is;

Adam Silo (ca. 1674–1772), Dutch shipping off the Low Countries, 18th century, oil on panel

On the back is a seal they would like help in identifying.

The Daubuz Gainsborough

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

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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”