Section of the Clackmannanshire Coalfield : taken about two miles north of Alloa /
Bald, Robert,1776-1861.
Maingy, R.A.
cartographic

1849.
"Drawn by R.A. Maingy, mining & civil engineer".
"Presented to James Johnstone of Alva Esquire by his obedient and obliged servant Rob. Bald 12th March 1849."
Johnstone, James, of Alva.
Coal
Geological vertical sections