The Digital Ark: Early Modern Collections of Curiosities in England and Scotland, 1580-1700
Johannes Lutma (c. 1584 - Jan 1669)
Famous Dutch silversmith.Rembrandt created an engraved portrait of him in 1656 that refers to him as Joannes Lutma Aurifex (Wieseman et al, 8). Other biography: https://en.wikipedia.org/wiki/Johannes_Lutma Artist - silversmith
Linked print sources: as Mentions or references - Rembrandt: The Late Works, Supplement, online edition.
References in Documents: