I have 1 1957 Silver Certificate C40005919A signed by Priest and Anderson.Also has A 157 in lower left hand corner. 1 1957b X70059569A G764 signed by Dillion and Ganahan. 1 1957b *0913724B A744 they are akk in fair condition. Can your help me with an approximate value of each one?

Thnk you in advance.

Laura