10 micron thickness plating (usually gold)
Plaque is Plated, 925 means 925 Silver and is G 20M is 20 microns or "thickness" of the plating. The same would apply for Gold plating
What does plaque mean
In French, the word "plaque" can be translated to mean a plate, a sign, or a patch of something.
It has so do with the amount of gold plating is on an item lets say a watch, you take it to the jewelers and by knowing how many microns the gold layer is he can effectively polish your watch or whatever it may be with out hitting the base metal there is a sight that explains it better and gives examples of micron thickness as compared to . You just have to search it out.
if you mean kg, then 1/10 x 1000 = 100 g
10 Gallons in a Cowboy Hat
"une plaque d'immatriculation" is a registration number plate (for your car) in French.
They mean that you have class 1 plaque
Marking on jewelry, watch cases, or pens. Plaque is plating, lamine is mechanically applied, such as American "Gold Filled" and 20 microns is thickness of precious metal, fondacier inox means base metal is stainless steel. For example, plaque OR G 20 fondacier inox would mean a 20 micron plating of gold (French word is OR) on stainless steel.
silver
ather/o
The value of a plaque or gold (g) 10 microns can vary depending on the purity of the gold and current market prices. To determine the value, you would need to know the weight of the plaque in grams, the purity of the gold (e.g., 24 karat is 99.9% pure), and the current price of gold per gram. You can calculate the approximate value by multiplying the weight in grams by the purity percentage and then multiplying that by the current price of gold per gram.