EExleghorn?
I think if you cross any white egglayer you will get a SBEL? idk I never researched them...
So is that some kind of EE? Or a Legbar?
I guess it's technically considered an EE. Mine are ameraucana x leghorn. Just bred to produce a lot eggs (hence the leghorn part) that are blue (ameraucana)
I'm out of clinics now, though after 10 years, it's very hard to not use medical terms. I'm a zookeeper now, and have the best daily notes anyones ever seen lol. 

