GSL/L/R/1/34
Letter from Alfred THOMAS
10 Apr 1834
GSL/L/R/6/99
26 Jan 1841
LDGSL/257
'Section from the Bristol Channel to Cardigan Bay through the County of Pembroke...'
1828
LDGSL/432
'Section of the coalfield at Rumney and Monmouthshire'
1830