SECURE THE SHADOW Poem 1860s CDV Photo of a Doctor + Civil War Tax Stamp

  
Original CDV of a man with a period poem written on the back dated Boston, February 1865. He is not identified but I believe he was probably a homeopathic doctor based on other photos picked up with it. CDV is about 4" x 2.5" and is in very good antique condition with light soiling.