Both DH and looked. There is nothing stamped Singer or Simanco anywhere on the machine but I did find 2 parts with numbers. They are the arms for the thread take up lever. The lower one is numbered 7933 HJs and the upper one is numbered 7914. The bed width is approximately 7 7/8th inches and the length is approximately 14.5 inches. He has a 7 inch harp with 5.5 inches approximately between the 2 thread posts. I'll put up some pictures now. One of my 2 inspectors/helpers, Lily, is visible in the last picture. 5th picture is the right side of the beast's belly and picture 6 is the left side of the beast's belly.