The 2017 Breck's catalog front cover features a picture of a bearded iris which is identified as 'Golden Zebra.' Its height is listed as 10 inches. McClure & Zimmerman also list 'Golden Zebra' and their description is similar to Breck's but they list it as an Iris versicolor which it certainly is not. Iris versicolor is a beardless iris native to Region 2 of the American Iris Society and much of the Northeast.
The real 'Golden Zebra' registered with the American Iris Society (AIS) is 'Golden Zebra' (Sass, R. 1956) Sdlg. 51-106. TB, 34" (86 cm). Midseason bloom. Bitone. Standards very deep yellow, near orange; Falls deep yellow heavily striped brown. Sdlg. 48-175: ('Tobacco Road' x 43-40) X 'Russet Wings' sdlg.
Although Breck's 'Golden Zebra' may look good in your garden, you could never exhibit it in an AIS sanctioned show and expect it to be judged. It is not registered with the AIS.