How Much Is 22 Carat Gold Stamps Worth?

I have several gold stamp replica would like to know how much they are worth:
Luis Monuz Marin the 1st governor of Puerto Rico 1st day of issue Feb 18, 1990
Wyoming Statehood the 1st day of issue Feb. 23, 1990
US Supreme Court the 1st day of issue Feb 2, 1990
Beau Geste 1st day of issue Mar 23, 1990
The Wizard of Oz 1st day of issue Mar 23, 1990
Gone with the Wind 1st day of issue Mar 23, 1990
The Bill of Rights 1st day of issue Sep 25, 1989
1918 Air Mail Issue Inverted Jenny
Idaho Statehood 1st day of issue Jan 6, 1990
Love Stamp 1st day of issue Janu 18, 1990
Ida Wells 1st day of issue Feb 1, 1990