Dr. Martens turns back the clock this spring. The Portland, Ore.-based company is introducing the Con-Gress, a limited-edition boot featuring an American flag motif on the toe. According to Doug Segal, international sales manager, the look is a replica of a 1460 boot discovered on an auction website. The newly issued version even duplicates the blue-and-yellow laces used by the boot’s owner. Just 1,460 pairs, priced at $150, will be sold globally through independent retailers and Dr. Martens stores. Delivery is slated for February or March.