Hi Crystal

Thank you for contacting Mearto with your appraisal inquiry.
I'm not able to make a conclusive match to any artist by the name of Mancini in the various artist databases we have access to but it's probably American or European and 19th or 20th Century.
Based on the photos and information provided, and subject to examination, this is:

American or European School, 19th or 20th Century
Untitled landscape with trees and a river
oil on canvas
19 by 27 inches
framed in a giltwood frame
signed MANCINI lower right
CONDITION: appears to be in good condition
$300-500*
*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.