The back of the card tells the story. Card collectors exchanged cards to add variety to their collections. This card, a wheat field in Montana, was exchanged for a card from California showing a movie star's home. Postmarked Bozeman, Montana, July 18, 1945. Our guess is "ans" in script across the cancel indicates that Miss George answered this card, possibly in reply to D. B.'s message. How about this for a hobby back in the 40s?