The decan and term already recorded for this degree trace to two named ancient writers. Vettius Valens, writing in Greek around the year 175, divided each sign into three ten degree faces under a rotating planetary sequence, leaving Mercury to rule this decan, the second of Cancer, and Ptolemy's Tetrabiblos separately preserves the Egyptian bounds table, closing out Venus's term here, the last degree before Mercury takes the finer division too. Neither writer pictured anything, only ruled it. The first complete pictorial set for all 360 degrees survives whole in 1494, in Johannes Angelus's Latin Astrolabium Planum, safely public domain but never freely translated into English. The next complete English set is Welsh minister John Thomas's, writing as Charubel in 1898, whose entry for this degree describes a man, delving, a plain, three word entry naming an activity rather than describing a scene around it.
In practice, this degree is mostly used to time events through progressions or synastry. Practically, a degree defined this closely is mostly used to time events through a progressed Sun, Moon or angle reaching it exactly, or to flag two charts sharing it closely enough to matter in synastry, uses that postdate every one of the older systems named above by many centuries.