Serial number range: 1733001-2008500 (1960-1963, approx. 27,900 produced). Production by year: 1960: #1733001-1827000 (13,000 units); 1961: #1880001-1909000 (12,900 units); 1962: #1964001-1965000 (1,000 units); 1963: #2007501-2008500 (1,000 units).