This is a later 20th century hand painted copy of the well-known Portrait of Rembrandt's Mother by Rembrandt van Rijn that was originally done in 1639 and is part of the permanent collection of the Mimara Museum in Croatia. The wood backing and painting style indicate this was likely produced in a painting factory is China or Hong Kong. The size will impact the value. The estimate is based on actual recent past recorded auction sales of comparables. Retail 'asking prices' can be higher and vary.