I have an etching of a windmill on a path with trees around. It has a circle with szl in it and signed in pencil by something that looks like Hasselboom or Nasselhorn? It is called Moulin en Viul or Moulin en vant. Can you help me with this?

My I suggest contacting an Art History Professor at your university for question about your etching... in most case professors of art history are eager to experience new found pieces... or contact your nearest museum...