Hi John,
It is my pleasure to answer your questions. City guild mark for Utrecht, since 1712 silver first standard marked twice with city mark of Utrecht Crowned and province mark of Utrecht Crowned to denote 1st silver standard, being minimum 934/1000 fineness. Utrecht date letter H for 1791. Maker’s mark
IVN for; Jacob van Nieuwcasteel, registered 1790-1811.
http://collectie2008.boijmans.nl/nl/wor ... %28KN&V%29
http://centraalmuseum.nl/ontdekken/obje ... =1#o:12541
For all other marks
ZI (The 1953 marks renewal and abolition and invalidation of all duty marks, including those for unguaranteed objects of national origin and introduction of the
Z marks for objects which are submitted in finished condition, which consequently could then not be assayed as thoroughly) and small
flowery V (duty mark) see:
http://www.925-1000.com/forum/viewtopic.php?f=5&t=32028
Could you be so kind to show us a close- up image of the possible O mark, which could be a little
(.t), the Utrecht redeem and tax mark of 1795? Thanks.
Best,
Oel.