This is an antique C.F.A. Hinrichs USA Kleemann Single Student Lamp which has been converted to electric. It has pat. dates of 1863 and 1873 on the burner and 1874 on the tank, which looks to be intact and original. It has a couple dings to the base.The shade is a 7" narrow swirled pattern in a maroon color. No chips or cracks. 
  I purchased a partial estate of a well known high end lighting collector. Everything from early oil, to gas, to early electric. The whole history. There are dozens of oil lamps and shades and THOUSANDS of parts, pieces and PRISMS. Apparently, her parents before her were also collectors. I am opening boxes and unwrapping items in newspaper and fruit tissue from the 40's. Tucked away all these years, not to be appreciated. I am not a collector. But I am very happy to return these fine items back into the hands of those that can appreciate them so much more. The craftsmanship of some of these items is amazing. You can't find that now.