Dominated by a large copper dome surmounted by a cupola, the Best Petroleum Gasoline Station was intended to suggest Charles Bulfinch's Massachusetts Statehouse (BH2). In 1922 Coolidge and Carlson established the model for Colonial Beacon stations throughout the Metropolitan Boston area, of which four survive. The gas stations in Boston, Stoneham, and Malden have all been altered; the Woburn station is the best preserved and the only one still being used for the sale of gasoline. The firm was originally located in Everett, supplying Venezuelan oil to the metropolitan region from its docks on the Mystic River.