A wonderful and fun decanter or cocktail shaker made from silver plate with the original green bottle or decanter within in the form of a Marine or Railway Signal Lantern. The underside is where the full mark can be found, I believe for the silversmith, Svedboms Guldsmeds (ES m) and also marked “Extra Prima NS” I would date this to the mid twentieth century, probably 1950’s. The top of the lantern is removable. The glass decanter can be removed for cleaning by unscrewing the four ball feet, removing the bottom plate and the bottle removed. Excellent condition measuring 3 1/2″ x 3 1/2″ x 8 1/4″ tall or 10″ tall to top of swing handle while upright.