Story
This Pacific is the last survivor of the series #3710-3714, class P-4a, used in heavy passenger or fast freight service. Designed for 70 mile an hour speeds. Has superheater and a steam booster on the trailing truck. The booster, an auxiliary steam engine, aided in starting heavy trains smoothly. Named The Constitution during a New England-wide name contest sponsored by the B&M. Sold to Nelson Blount 1960.
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