Dear all,
thank you for your fast answers I am sorry that I am answering that late,
but I was abroad (on a numismatic exhibition) and I was overbooked.
So I am planning to create a new page for the collaboration in Commons, as
well as a special category for this collaboration.
I will try to use the templates that you suggest (Template:Artwork), and
will prepare a (temporary) template with numismatic parameters as an
embedded template in the "description" parameter. It can thus be one day
integrated in the artwork template, if necessary. And I will create a
template for references, explaining that the information in the template is
for the indication of the coins, made by the Society.
You will be welcome to check and review the first uploads according to this
collaboration, and return feedback.
Yours sincerely,
Vladislav Nedelev