I found the following link:
http://www.antiques.dk.com/
then selecting "Toys and dolls" and "Games and Puzzles" and "Chess sets" you are in:
http://www.antiques.dk.com/browse.php/Toys%20and%20Dolls/Games%20and%20Puzzles/Chess%20Sets/1
From here you have a pretty nice way of looking at chess sets, which could be an example of how the database can be accessed. At the right side you see categories. In this case when you select chess sets it is chess sets on country (so the category should be country).
In my opinion it should be possible to look at the database not only on country (origin), but on several other categories (or characteristics) as well, like e.g. manufacturer, material, age (in periods), types, etc, etc.
Robert and Dermot, what do you think of such an interface?