OK, they're not 28mm but 54mm-ish, and more giants than ogres, but that's what it said on the blisters.
Painter:
Rochie Rochfort / William Breden / Andrew Taylor
Released:
May 1985
FF27 Fighting Fantasy Ogres
FF27 Fighting Fantasy Ogre A
FF27 Fighting Fantasy Ogre B
FF27 Fighting Fantasy Ogre C