Hi Richard,

Thank you for contacting Mearto with your appraisal inquiry.
There are more than 100 artists with the last name of Newman listed but I'm not finding a match to this signature. The value is based on the sale of other unattributed seascape paintings of similar size and composition.
Based on the photos and information provided, and subject to examination, this is:

American or European School, 20th Century
Seascape painting, undated
oil on canvas
signed NEWMAN lower right
30 by 54 inches
CONDITION: client represents this to be in new condition.
$400-600*
*represents a fair-market value for auction purposes; retail or asking price may vary.

Please let us know if you have additional items to appraise, and thank you again for using Mearto.