Heroes of Baseball: Danbury Mint 22kt Gold Lot FT

[Wacowillie]

Found these cards in a box as I was moving. Not really sure the value. Does anyone have any insight on this? All are in a binder in screwdown cases. They look in mint condition to me.

Jackie Robinson
George Brett
Ted Williams x2
Nolan Ryan
Roberto Clemente
Honus Wagner

Would like to trade them as a lot.
Looking for Current Cubs (esp Castro) & Cubs Prospects.