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Title: Watson Drop shutter. [Go to resource]
Description: Watson Drop shutter. License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Source: Science Museum Creator: Watson, Patrick Heron, Sir (maker) Identifier: 1929-221 Go to resource More Like this...-
Addenbrooke shutter, inscribed "Addenbrooke's…Addenbrooke shutter, inscribed "Addenbrooke's Patent,…
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