I have the Kansas City Star collection books and Job's Tears was published January 27, 1932. It does have the squared off center. I feel it can be made a circle without a problem. The pattern suggests dark green for the corner and center eye and light green to surround the eye and a base of light.
You could easily draft the pattern yourself, as in my books it tells us to redraft all patterns before using them.
I have an early version of BB but have not used it in YEARS, does anyone more computer savvy able to find it in BB. If not I can find my CD and look for it.
Jan