Dennis,
To answer your statement..

The 4 small tokens weigh 2 regular oz.each. Total being 8 oz.
The large token weighs 4.6 oz. Total for the 5 tokens is 12.6 oz

12.6 oz multiplied by .911 for troy oz. is equal to 11.4786 troy oz. This info comes from conversion charts available on line.

Silver being over $30 a troy once makes this set worth well over $300 dollars.

Sincerely,
Jerry O