Dear Lisa,

Thank you for your request. The presented object is a painting made with oil or acrylic paint on canvas with the measurements of 17 x 20 inches. It depicts a river scene and is signed with the name "L. Mahr" or "Lmahr". Sadly no artist with such a name is mentioned in auction result lists or similar reference books. This painting was made in the last third of the 20th century.
This piece is in good condition and there are no serious damages visible.
An estimation would be between 40 to 80 USD.
This estimation is based on actual recent past recorded auction sales of comparables. Retail "asking prices" can be higher and vary.
With best regards,
Georg