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From Henry Masterman, Little London, re Mr Barkas, including his estimate of engine costs.

Account of borings at East Sleekburn Colliery

1798-01-01 — 1799-12-31

Report re the sinking of a new pit at Coxlodge

Plan of the Bollihope and Woolsington Common mining area

Plan of the Mineral Ground in the Manors of Dufton, Knock and Milburn, Westmorland,

1820-01-01 — 1820-12-31

From Henry Masterman, Little London, Uxbridge, acknowledging accounts (see NEIMME/Brown/1/295).

Accounts re Cambo Colliery

1723-01-01 — 1724-12-31

Minute Book containing minutes of the Court of Assistants of the Governer and Company.

1759-06-28 — 1768-09-15

From Henry Masterman, London, re the failure to aquire Chirton and borings at Throckley bank.

Report re Brenkley Colliery including current workings

1749-04-05 — 1749-06-19

From Henry Masterman, Little London, re issues raised in NEIMME/Brown/1/302.

Plan and section of workings at Cadger Well Mine (Ashgill Head)

1900-01-01 — 1900-12-31