HUMMINGBIRD HOSIERY

I HAVE FOUND A POSTER ADVERTISING NYLON STOCKINGS. THE COMPANY IS HUMMINGBIRD HOSIERY. IT HAS A PICTURE OF A WOMAN AND IT LOOKS LIKE THERE IS A POLO GAME GOING IN IN THE BACKGROUND. I WOULD LIKE TO KNOW HOW OLD THIS IS? AND WHAT IT MIGHT BE WORTH? AND IF ANYONE IS INTERESTED IN AQUIRING THE POSTER? PICTURES LATER (WHEN I LEARN HOW).