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Record
Cofnod / Record
CP48 - Photographs: Centre for Environment, Fisheries & Aquaculture Science, Conwy.
1 - Series of H.P. glass negatives
Cyfernod / Ref No
CP48/1/34
Teitl / Title
Cover over E tank to control photosynthesis and prevent excessive alkalinity of the water. [13/26]
Dyddiad / Date
1926 Aug
Graddau / Extent
1 slide
Lefel / Level
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