[fernando]

Originally Posted by Jim McDougall

...That was exactly what I was looking for, examples of the 'touch mark' of the silversmiths...

I am afraid the "touch" is the fineness of noble metals, not the mark of makers ...

" Contrary to what the ordinary citizen often supposes, jewelery pieces are not made of precious metals in their pure state.
In fact, precious metals in that state are very little workable.
If an ordinary wedding ring, for example, were made of fine gold, its resistance to deformation would be so low that the usual day-to-day activities of an ordinary user would be sufficient to constantly damage it.
Therefore, goldsmiths have always had the need to add other metals to the precious metals they worked with, in order to obtain an alloy suitable for the type of work they aimed to produce.
The amount of precious metal in the alloy is translated through the indication of its touch, meaning that the higher the touch of a piece, the greater the content of precious metal per unit of mass of that piece.
Quoting J. Almeida Costa and A. Sampaio e Melo (in Portuguese Dictionary), it can be said, therefore, that touch is the percentage of pure metal in an alloy in which it is fundamental.
The term "title" is also often used in place of touch.


Usually a good sterling silver has a 925/ooo touch... or fineness. The mix is ussually copper. Same criteria goes for gold,