Vintage Obsolete Railroad Train Padlock Lock New York New Haven & Hartford. No Key Present. Chain present. Measures 3.5" tall. Signed NY NH & HRR on the hasp. The New York, New Haven and Hartford Railroad, commonly known as the New Haven, was a railroad that operated in the New England region of the United States from 1872 to 1968, dominating the region's rail traffic for the first half of the 20th century. Patent date 1915.