'A keel of this fuel is 21.2 tons, the approx. weight of the fuel carried on barges on the River Tyne in 17th century England'
coal
WEIGHTS & MEASURES: A keel of this fuel is 21.2 tons, the approx. weight of the fuel carried on barges on the River Tyne in 17th century England
A keel of this fuel is 21.2 tons, the approx. weight of the fuel carried on barges on the River Tyne in 17th century England
A keel of this fuel is 21.2 tons, the approx. weight of the fuel carried on barges on the River Tyne in 17th century England
WEIGHTS & MEASURES
coal
WEIGHTS & MEASURES