What is this valve cover? Not normal

I purchased a gen3 head a long time ago and I'm just getting it on now. I went and bought new valve cover gaskets for the gen3 mr2/st205 only to find now they are wrong. (11213-88480 and 11214-88480)
So I now presume it is a caldina head but the every picture i look at and also parts diagrams on toyodiy I cannot work out what this valve cover is from. Both ST215 and ST246 look different.
 
Did the gen3 3sgte come out in any other cars? (dont worry it will get a good clean up and pait before i use it.)

 

Yeah its slightly different to a gen3 turbo

It should bolt up fine. The only issue I could see; would be that with the raised part of the valve cover might foul the bottom of the intake manifold. Dont take my word for it though...

i have a side feed intake so that wont be a problem. Now I'm thinking what if I've got a 3sge head?
I presumed it was a gte as it had a turbo off the side. but maybe its a worked 3sge head,
it has oversize valves than gte and bigger cams also. 
Are there any main differences I should be worried about?
It had a turbo intake manifold bolted to it to so I just assumed. But I guess now maybe everything is interchangeable?

yeah its been worked, ported, valves, 264 and 272 cams, and hks rail. 
Looks like everything will work out fine. The water connection on the rear seems to be the only difference with the mr2 i think

I was meaning the coolant necks are different, it shouldn't be a problem.
I will run my own catch can is the plan