An original, antique, very early 20th century embossed tin advertising sign made by Mayer & Lavenson Co N.Y. for "The Black Shells" Romax Climax Ajax manufactured by the United States Cartridge Company of Lowell Massachusetts. The sign features a embossed depiction of one of their shot gun shells in the center and the sign measures approximately 13 1/4" b y 9". Condition - has some wear and soil with some scratches as shown. There is no restoration of any kind and sign is unconditi...onally guaranteed genuine old circa 1910 or close. sign may improve with a good cleaning as it is completely fresh to the market from the attic of a early local estate. A great sign and a great rarity of which I have never seen another example.