Is there a Foreign coin price guide?

Answer 1

There are many. Check with the reference librarian at your local library as one starting point. IMO the guides issued by Krause Publishing are among the best and most comprehensive.

Krause guides are fairly detailed. They're rather expensive ($40+) but are among the most detailed guides available. The Craig guides are less money and the Schroeder guides are also commonly used. Those are the three you'll find in any quality coin shop, for sale, and for use by the owners.