Here are some characteristics to silver to learn to recognize.
With the images the text is unfortunately in Dutch. Use a translation program if you want to translate this into your own language.
1) Minerva head of security office R (Gouda)
Sterling silver contains a sign of the guarantee office. In the Netherlands this is the minerva head (see photo).
2) Dutch silver approval marks
Larger silver objects have a lion as a seal of approval (see photo).
3) Office signs and year letters Netherlands
In or next to the minerva head a letter is printed (often difficult to decipher). This letter is the letter of the guarantee office in the Netherlands.
A = Amsterdam B = Utrecht C = The Hague D = Rotterdam
E = Groningen F = Leeuwarden G = Zwolle H = Arnhem
I = Breda J = Joure K = Den Bosch L = Middelburg
M = Schoonhoven N = Maastricht O = Roermond P = Alkmaar
Q = Roosendaal R = Gouda X = Joure (Pforzheim, Germany)
The current guarantee offices are R, M, J and X.
In addition, there is a year letter in the object (see photo). These are always all letters of the alphabet (except for the letter U), whereby people continue to count indefinitely. The font can see which year is something precise.
Example: the letter Z on the photo represents 2009, but a tighter typeface Z in a circle represents 1934. You can choose these fonts further on the internet.
4) Millennium sign
In the years in which a coronation took place, a crown was also minted in the object (1948, 1980 and 2013). A special mark has also been designed for the millennium year 2000 (see photo).
5) Quality mark silver plated object
In silver-plated objects often stands 90 (or for example 100). This means that for the silvering of 12 spoons and 12 forks 90 grams (or for example 100 grams) of silver has been used.
The abbreviation EPNS is an English abbreviation and also means that an object is silver-plated.