Per "A Guide Book of United States Coins", 2011 (the latest copy I own), value is $8.00 each.
This book is published each year (usually known as "The Red Book", the color of the cover), and lists average retail values of all U. S. coins. The value of this set is unlikely to have changed much since 2011.
Re: United States Proof Sets of 1978 - 2 Sets
Per "A Guide Book of United States Coins", 2011 (the latest copy I own), value is $8.00 each.
This book is published each year (usually known as "The Red Book", the color of the cover), and lists average retail values of all U. S. coins. The value of this set is unlikely to have changed much since 2011.
Re: United States Proof Sets of 1978 - 2 Sets
Thank you for your help.
Re: United States Proof Sets of 1978 - 2 Sets
Your 1978-S proof sets are listed at $4.75 each wholesale, and $8.00 each retail in the 2014 Whitman's blue and red books.