One of several "time signs" used in alchemy to indicate the period of an hour.
Symmetric, Closed shape, Monochrome, Contains straight lines, Has crossing lines.
Category: Alchemical Symbols.
More symbols in Alchemical Symbols:
Alchemical symbols, originally devised as part of alchemy, were used to denote some elements and some compounds until the 18th century. Note that while notation like this was mostly standardized, sty… read more »