shade balls

shade balls is a ball.

Also recorded as shade ball.

Overview

Materials recorded for it include plastic. Its recorded use is shadow. Catalogue entries state maker, model, completeness of accessories and condition. VALÉORINE records this subject so that lots referring to it can be described consistently.

In detail

plastic balls used in resevoirs for environmental protection and reduce evaporation

Sources

Each source is named with the standing the house places on it, so the evidence can be weighed rather than taken on trust.

reference work · Reputable secondary · Wikipedia
“Shade ball”, English Wikipedia, consulted as further reading
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reference work · Reputable secondary · Wikidata
Wikidata, structured authority record Q20909382: shade balls
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