Numista has this artist: https://en.numista.com/catalogue/artist.php?id=952
- Name: Johannes Lutma
- Wikidata QID: https://www.wikidata.org/wiki/Q18516670
- Description: Janus, or Johannes Lutma the elder (Emden, c. 1584 – Amsterdam, January 1669) was a well-known Dutch silversmith.
- Image:

- Works: N#379615
But there is a problem: two artists have this name and Numista has mixed data for both:
- The artists are father and son:
- Johannes Lutma the Elder (1584-1669) https://www.wikidata.org/wiki/Q2778143
- Johannes Lutma the Younger (1624-1689) https://www.wikidata.org/wiki/Q18516670
- Numista has description and image from the Elder, but QID and works are from the Younger.
- Both artists made medals:
- Johannes Lutma the Elder: https://www.frick.org/exhibitions/scher/78
- Johannes Lutma the Younger: N#379615
Source
https://canvasprints.com/products/peace-of-breda-1667-johannes-lutma-1624-1689-1669
https://www.alamy.com/peace-of-breda-1667-silver-medal-obverse-dutch-lion-tramples-weaponry-in-the-background-ships-at-sea-within-a-circle-reverse-inscription-under-coat-of-arms-breda-johannes-lutma-1624-1689-netherlands-1669-silver-metal-striking-metalworking-d-71-cm-w-12395-image261384529.html
https://www.frick.org/exhibitions/scher/89
https://www.endlich.nl/app/uploads/2018/11/Boek_John_Endlich_Penningen_screen.pdf
I think Numista could have both artists.
Johannes Lutma the Elder
Use https://en.numista.com/catalogue/artist.php?id=952 with these data:
- Name: one of these
- Johannes Lutma I
- Johannes Lutma (not modify; cons: is the same of the son)
- Johannes Lutma the Elder (cons: is in English)
- Johannes Lutma (1584-1669) (cons: has the years)
- Description:
- (EN) Janus, or Johannes Lutma the Elder (Emden, c. 1584 – Amsterdam, January 1669) was a Dutch goldsmith, silversmith, metalsmith, engraver, designer and drawer.
- (ES) (I updated it)
- Portrait: (not modify)
- Wikidata QID: https://www.wikidata.org/wiki/Q2778143
- Wiikipedia pages (Can Numista get them from Wikidata?):
https://en.wikipedia.org/wiki/Johannes_Lutma
https://fr.wikipedia.org/wiki/Johannes_Lutma
https://nl.wikipedia.org/wiki/Johannes_Lutma
https://pl.wikipedia.org/wiki/Janus_Lutma
https://ru.wikipedia.org/wiki/Лутма,_Иоганнес - Numista pages: none (unlink from N#379615, engraver obverse/reverse)
Johannes Lutma the Younger
Add new record:
- Name: one of these
- Johannes Lutma II
- Johannes Lutma (cons: is the same of the father)
- Johannes Lutma the Younger (cons: is in English)
- Johannes Lutma (1624-1689) (cons: has the years)
- Description
- (EN) Jan, Janus, or Johannes Lutma the Younger (1 September 1624, Amsterdam - 11 November 1689, Amsterdam) was a Dutch goldsmith, silversmith, engraver and drawer.
- (ES) Jan, Janus o Johannes Lutma el Joven (1 de septiembre de 1624, Ámsterdam - 11 de noviembre de 1689, Ámsterdam) fue un orfebre, platero, grabador y dibujante neerlandés.
- Portrait: https://www.artnet.com/WebServices/images/ll05209lldSDJGFg8GECfDrCWvaHBOcOD1/johannes-lutma-the-younger-selbstbildnis.jpg
- Wikidata QID: https://www.wikidata.org/wiki/Q18516670
- Wikipedia pages: none
- Numista page: N#379615 (engraver obverse/reverse)