I received an oil painting on canvas of a landscape. It was my aunt's for 60 years. She acquired it in Europe on a trip and had it hung in her living room for the last 60 years. I can't make out the signature. I know it begins with an M and ends in either O or U. How can I find out if it's of any value?

Take it to an art gallery or antique shop, or post a picture of the painting and a close up of the signature here or eBay or various other sites. It may not be identifiable.