Austin Contegiacomo was playing catch with his Sheepadoodle on the cold beach near Margate last month when his dog abandoned the game and began sniffing around. There, lodged in the sand at the high tide line, were nearly a dozen sealed bottles of whiskey, embossed with “Lincoln Inn” and a detailed depiction of a man riding a horse.

Lincoln Inn whiskey was distilled in Canada and may have been one of the companies that later became Seagrams, although it’s not entirely clear. But how the whisky bottles ended up in the sand is a mystery. Contegiacomo suggested they may have been sucked up by dredging machines off the coast and deposited on the beach.

Nearly a dozen perfectly sealed whiskey bottles dating back to Prohibition times were found by Austin Contegiacomo while walking his dog along the beach in New Jersey.

The Canadian-branded booze was discovered in February, prompting speculation about how it wound up at the Jersey Shore.

A U.S. Coast Guard rescue swimmer and his dog stumbled across something unexpected on a New Jersey beach last month: nearly a dozen rare and mysterious bottles of whiskey.