Coal at Chevington

[janwhin]

Is this the earliest reference to the potential for coal extraction at Chevington?
Newcastle Courant issues from Nov 1757 to January 1758:
"Lately discovered and now to lett, Several valuable seams of coal, lying under the estates of East and West Chivington, viz:
First or uppermost seam of coal......7ft 4in thick:
Second ditto ......6ft 1in ditto;
Third ditto ......3ft 2in ditto:
The above seams are all of good caking quality, and the deepest does not exceed 50 fathoms where bored, and the borings have been made by John Rawling. The estates contain upwards of 4000 acres of land and lie contiguous to the sea; and in all probabliity the coals may be shipped at a much easier expense than those shipped from the Tyne or Wear rivers."