Thank you for submitting your item for appraisal. This appears to be a serigraph by american artist Dan K. Teis 1925 - 2002, signed in pencil by the artist and inscribed "artist proof". A few of his paintings were offered and sold at auction, none of his prints were offered in recent history. The estimate is based on the few auction results of paintings sold at auction. There is no measurement for the sentimental value you might attacht to the item.