Rhif Cyf AmgPFA/6/321
TeitlMap and survey of rail road from the Penrhyn quarries to Port Penrhyn
DisgrifiadTotal length 10.120 yards or 5 3/4 miles. Linen backed, scale of lengths 1/8 inch to a chain or 22 yards, scale of falls 1/8 inch to 22 feet.
Dyddiad1829
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