The firm of Otto & Raynders manufactured fine surgical instruments and supplied the government during the Civil War of the United States (the reason I could not find anything on the razor catalogs or guides) This is a massive razor that maybe was used to shave other parts of the body and not the face...Ferdinand Otto sued John Reynders in the State Court and Patent Rights back in 1876 thus ending the partnership. I have appended their logo. HOG
http://i1112.photobucket.com/albums/...58_Chatham.jpg