Original CDV by Jacoby of Stroudsburg, Pennsylvania. Signed on the back in pencil.. but I'm unsure of the name.. Yours Truly, E.R. Walker or Warner? And along the left edge, "Corp 48 NY Cav." ?? That's my best guess, if you have any thoughts, please let me know. Dimensions are 4.25" x 2.5" and the condition is good, with some foxing.