Five months ago I went on a appraisal for the estate of a 92 year old lady. Most of the 77 pieces were U.S. high end, however a couple were in all probability European & one was very skillfully engraved. I had this saved away before it was sold & purchased it today since I really like quality engraved glass & its relatively hard to find these days. All the glass was anywhere from 1890 to 1925. This vase is 10" height, 4" width X 2 1/2" width. Glass is 1/2" thick & engraving is 4 levels. The signature is extremely small on the bottom & was difficult to read & photograph although I think it says Mottl or Mottle...I cannot tell even under a 20X loop. Anyway I thought I post here to see if anyone has any ideas...am fairly certain it is European. Thanks, Ken