Boulton, Watt & Co.

Boulton, Watt & Co. fuerunt societas ingeniaria saeculo XVIII exeunte et XIX Birminghamiae in Anglia constituta. Nummos et machinas monetarias variis in civitatibus venditabat.

• R. G. Doty, "A Mint for Mexico': Boulton, Watt and the Guanajuato Mint" in British Numismatic Journal vol. 56 (1986) pp. 124-147
• R. G. Doty, "Early United States Copper Coinage: The English Connection" in British Numismatic Journal vol. 57 (1987) pp. 54-76
• G. P. Dyer, "The Currency Crisis of 1797" in British Numismatic Journal vol. 72 (2002) pp. 135-142
• F. F. Gilboy, "Misadventures of a Mint - Boulton, Watt & Co. and the 'Mint for the Brazils'" in British Numismatic Journal vol. 60 (1990) pp. 113-120
• Richard Margolis, "Matthew Boulton's French Ventures of 1791 and 1792: Tokens for the Monneron Frères of Paris and Isle de France" in British Numismatic Journal vol. 58 (1988) pp. 102-109
• Samuel Smiles, Lives of Boulton and Watt. Londinii: Murray, 1865 Textus apud Internet Archive