Made in Italy – New in retail box. Mamoli focus on historical accuracy and fidelity of scale. History of the Flying Cloud American Clipper 1851. The FLYING CLOUD – American clipper 1851 appears in the USA about 1820. Flying Cloud, the masterpiece of builder Donald McKay, was built at East Boston in 1851. It acquired a high reputation during the’Gold Rush’ in California, making the passage from New York to San Francisco in the record time of 88 days, 22 hours and 30 minutes, never equalled so far.