What is a turner wall accessory arch de triumph signed painting worth?

The value of a Turner wall accessory "Arch de Triumph" signed painting can vary significantly based on factors such as its provenance, condition, and market demand. Generally, paintings by J.M.W. Turner can fetch substantial prices, often ranging from several thousand to millions of dollars at auction. However, if this piece is a reproduction or a lesser-known work, its value might be considerably lower. For an accurate appraisal, it's best to consult an art expert or auction house.