water clock
water clock is a timepiece or non-electrical analog device.
Also recorded as clepsydra.
Overview
Catalogue entries for clocks state movement, case, dial signature and running condition. VALÉORINE records this subject so that lots referring to it can be described consistently.
In detail
timepiece in which time is measured by the flow of liquid into a vessel
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
“Water clock”, English Wikipedia, consulted as further reading
Consult the sourcereference work · Reputable secondary · Wikidata
Wikidata, structured authority record Q194173: water clock
Consult the source