Girl holding a British flag standing behind a big box of "Blue Ribbon" tea

Colour card advertising "Blue Ribbon Tea". Front of card depicts a girl holding a British flag standing behind a big box of "Blue Ribbon" tea on the ground. Inscription states "The Two Standards" . The back of the card contains patchy handwritten text that states "you want to find out which is really The Best Tea in Canada. Buy a package of Blue Ribbon Ceylon and it won't take you long to decide." Also handwritten in pencil, "a valentine for you"