Hello my name is***** am one of the expert appraisers here at justanswer. I would be happy to help you. The artist I Costello has sold several paintings through :
Concept Art Gallery
1031 South Braddock AvenuePittsburgh, PA 15218United States
The values are 150.00-250.00 I believe they have sold five of his works. I can not find a biography on the artist however anywhere. The paintings range in age 1930-1960s. He has mainly done Italy and Australia landscapes and village life along with some boating scenes. Very attractive paintings. If I may be of further service please let me know.
If I may be of further help please let me know.