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Map, colour lithograph, Manchester Corporation Water
Works, plan showing Works at Lake Thirlmere, Cumberland,
scale about 3 inches to 1 mile, published by Henry Blacklock
and Co, Albert Square, Manchester, 1895.
The original lake is plotted, and the proposed extent when
the level is raised by 20 and 50 feet.
Tipped in opposite p.30 of the History and Description of
the Thirlmere Water Scheme, by Sir John James Harwood.
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