I have 5 $20 confederate certificates, 3 that are signed by ES Read. 1 that is signed by N Palmer and the other I can't read the signature. I also have a $4 signed by what looks like A Gilliam. Are they worth anything?

Robinswebnest -I need more information,in order to give you the answers you want.Pleas
E give me the answers to the following;;#1- I need to know the issue dates (FRONT SIDE)
#2- THE issuing bank and its location:: #3- COLLORS WOULD ALSO HELP AND WHAT IS PICTURED ON THE FRONT SIDE( NOTE ) THE $4.00 dollar one you have is not real; there was no $4.00 notes made (PRINTED ) by any one : SORRY :: WAITING for your answers to my questions?? Have a nice day and GOD BLESS ::F.B.E.