The signature looks like Guinod? This measures 50" wide X 30" high.
Please look closely at my photos for details. The item "ANTIQUE SIGNED DUTCH OLD MASTER PAINTING SHIPS IN HARBOR 30 HIGH x 50 WIDE" is in sale since Monday, February 4, 2019. This item is in the category "Art\Paintings". The seller is "sandy810" and is located in Windham, Maine. This item can be shipped worldwide.