Printed on pasteboard sleeve: "EDISON // MAZDA // LAMPS // STAY BRIGHTER LONGER"; "the MAZDA Lamp contained herein is manufac // tured by patent of the Dominion of Canada // 263952 / 359875 // and others dated from -- 1924 to 1942 // inclusive. // Made in Canada // GE 119"; printed on bulb: "E 25W 120V MAZDA"