Original CDV of Robert E. Lee, with a light signature.
That is positively Lee's signature.. At first I thought it was light pencil or pen, but now I believe it's more likely to be a period (1860s) copy of an original signed CDV. This CDV has Some condition issues, including a couple of minor crinkles, and it has been trimmed down to about 3" x 2.5".
My scans were uploaded directly to this listing with no editing of any kind. Csa autograph famous military uniform soldier 1860s.