The technique of helical wrapping in four directions over a core. (a) Three stages in wrapping that produce a diamond design (Frame 1992). (b) Specimens with varied wrapping patterns employing multiple colors.
Isbell, William H.; Uribe, Mauricio I.; Tiballi, Anne; Edward P. Zegarra, 2018, "Visual database", https://doi.org/10.25346/S6/1B33FN.