An interesting photo of a teenaged Diana Spencer, taken years before she became a princess, goes up for auction later this month, reports the Huffington Post. It shows Diana, probably around age 18, relaxing in a ski chalet with a friend named Adam Russell, reports NBC News with help from the Guardian. A bottle of whiskey sits on a nearby windowsill. They weren't a couple, though Diana biographer Andrew Morton says Russell was "smitten" with her. The photo has "Not to Be Published" written across it, and it's expected to fetch at least $1,000 at New Hampshire's RR Auction house when a week of bidding ends on Jan. 24.