I have a 5x8 engraving entitled Calendula 12/40 signed by Asa Cheffetz in pencil. It seems to be in perfect condition. How can I find out what it is worth? Thank you.

Google her name and you should find several for sale online. The cost ranged from $350 - $475, depending on size. Several were marked "sold" so my guess is that that price range is fair. Good luck. Rick