Nautical Sailing Ships Seashore Plaque 3D Relief Tekform 925 Silver Pt Vintage

Vintage plaque featuring a nautical scene - seashore with sailing ships, seagulls, and rocks - done in a high relief style. It measures about 8.5 x 4.5 x 1 inch. The back is covered in velvet, with a small button that reads Tekform 925 Silver Pt. I am not sure whether it is sterling silver, or silver plated. It is in good shape with some tarnishing. Location:L