The mint set is worth about ten dollars.
nimrod
5.5
20 nickels
5 to a dollar, 50 in all
half dollar, quarter, nickel, twenty cent peice ( yes, they do exist)
Repharse question, no US Twenty Dollar gold coins were made after 1933.
There were no $20 gold coins minted in the USA in 1939.
Only the Philadelphia & San Francisco Mints struck $20.00 gold coins in 1901
Lincoln penny, walking liberty half dollar, ten dollar Indian head gold & twenty dollar St. Gaudens gold. Most of the gold coins were melted before ever going into circulation.
The Australian Koala series of coins were only ever minted in platinum and the Twenty-Five Dollar coin was only ever issued as part of a set.
4 dimes, 9 nickels, 15 pennies
These coins weighed 33.1 grams when new, and are 90% gold.