This degree is already described as falling in a decan named for the Chaldean face sequence and a term drawn from the Egyptian bounds table, but neither label says who compiled either system or when. The Chaldean decan rulers, Venus governing this opening third of Cancer, come from Vettius Valens, a Greek speaking astrologer writing around the year 175, who divided every sign into three ten degree faces under a fixed rotation of planets.
The Egyptian bounds, which give this degree to Mars, are recorded by Ptolemy in the Tetrabiblos as an older table he inherited rather than devised himself. Neither writer attached a picture to any degree, only a ruling planet. A complete set of individual degree pictures first survives whole in 1494, in Johannes Angelus's Astrolabium Planum, a Latin work safely public domain, though no old English translation of it is.
The next complete English set is Welsh minister John Thomas's, writing as Charubel, whose 1898 book gives this opening degree of Cancer a large clock with its weights in sight, suspended from a high place, its dial plate complete with hours and hands, a picture of time made visibly mechanical rather than felt. Practically, this degree is mostly used to time events through a progressed Sun, Moon or angle reaching it exactly, or to flag two charts sharing it in synastry.