Dictionaries and Bibliographies
Biographical Dictionary of Medallists
Biographical dictionary of medallists; coin, gem, and seal-engravers, mint-masters, &c., ancient and modern, with references to their works B.C. 500-A.D. 1900; by Forrer, L. (Leonard)
Six volume work which includes just about every known engraver up to the date of publication in 1904. In many cases the entry includes a listing of known works. If you want to do a “deep dive”, this is the place. “The dictionary contains upwards of 10,000 entries”!
The volumes can be downloaded from Archive.org. The first volume can be found at https://archive.org/details/biographicaldict01forr/page/n5/mode/2up
Scroll down to the bottom of the page and the other volumes are shown by thumbnails. The volume number isn’t shown so you have to open each one. If you find yourself using them very much, it’s well worth downloading all 6.