Hi Henry,

Thank you for contacting Mearto with your appraisal inquiry.
The signature looks like "Levi", which could be the first or last name of the artist; I've run the name through the databases and can't find an exact match to the signature but have valued this based on its comparison to comparable still life paintings of similar size, composition and age.
Based on the photos and information provided, and subject to examination, this is:

European or American school, 19th or 20th Century
Still life: Flowers in a Vase
oil on canvas or board
signed "levi" lower right
26 by 16 inches
CONDITION: appears to be in good condition; value assumes no in-painting or losses
PROVENANCE: acquired at a thrift store
$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.