Cassetta frame

Unknown · 1880–1900; made in style of early 17th century · Poplar back frame with applied upper moldings in walnut, ebony, and ebonized pearwood. Half-lapped back frame. Niello; crystal and lapis lazulipanels with silver leaf beneath; some with dragon's-blood glaze. Frieze: niello-bordered panels with radius-ended centers and square corners.

From the collection of The Metropolitan Museum of Art. Free to download, adapt and use — no permission needed.