Unknown the material of the piece (I think it’s porcelain), hoping potential buyers may know more about it. If you have any info, please contact me. Beautiful piece with nice detail and nice vibrant colors and great subject matter. Measurements are 25 1/4″ x 19 1/4″ with frame. The item “ADOLPH TREIDLER QUEEN OF BERMUDA FRAMED TRAVEL PORCELAIN ADVERTISING SIGN” is in sale since Monday, September 10, 2018. This item is in the category “Collectibles\Transportation\Boats & Ships\Military\Other Naval Collectibles”. The seller is “outastoragevintage” and is located in Wautoma, Wisconsin. This item can be shipped to United States.