I think (and i am using the term loosely..lol) that OEG is the acronym for Standard size Old English Game Hens/Roos and OEGB is the acronym for Old English Game Bantam.
I have her twin and she was sld to me as a lemon splash OEGB. Click my website in my sig line and go to bantam page. She is there with her roo.
Maybe I should check the pen first and make sure she is there...lol.