To avoid assigning duplicate hood linings to colleges and universities that used the same school colors, the Intercollegiate Bureau of Academic Costume (IBAC) used different types of heraldic patterns to divide the two or more colors in an academic hood. In IBAC lists from 1927 and 1948, a number of hood lining patterns were described as “[color] above [color]” or “[color] over [color]”, which referred either to a hood lining divided per chevron, per reversed chevron, or per bar. Unfortunately, today it is not usually known which of these three patterns the Bureau intended to describe.

The IBAC assigned the Oklahoma College for Women a “green above gold” hood lining no later than 1927, according to an Intercollegiate Bureau list from that period. A list compiled by Kevin Sheard in Academic Dress and Insignia of the World (1970) used an identical description of the college’s hood lining colors, and helpfully clarified that the two colors were divided “per chevron”.