Record

MS 3147 - Boulton and Watt Collection - 1761 - 1977
- 3 - Correspondence and Papers - 1769 - 1895
  - 512 - Special Subjects and Correspondents. Minera Mine – Papers relative to the Settlement with Minera or Maesyfynnon Wen Adventurers, 1796 - 1796

Ref No	MS 3147/3/512/8
Title	Calculations. Sheet of calculations re. the premium and coal consumption of the Minera (Maesyfynnon Wen) engine. Not dated.
Level	Item
Date	nd
Access Status	Open

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