lithograph value and signature
I'm trying to help a family member ascertain the value of a lithograph.It is the same as one in the Smithsonian Institute.It was produced in 1866 by A. Hoen&Co. and is of Robert E. Lee's Farewell Address.It is in good condition for it's age and the colors on the flags are still there.It is in a very old frame that is also in very good condition.We are also wondering if the signature on these litho's would have been actually signed by Mr. Lee or if it is a copied signature. Any help would be appreciated and the website to the smithsonian is Lee's Farewell Address to the Army of Norther Virginia
Thanks, Scott Horn