What kind of Garrett turbo is this?? Verification PLEASE

[YayAreaDSM]

Hey guys i bought this turbo about a week ago and the guy wasnt too sure of what kind of turbo it was its a garrett turbo and it says AIR- 50 on the side. This turbo is going on an 95RS turbo project . The inlet side is about 63mm wide sorry guys not much to work with but all your help you be lovely....thx guys

 

[JeanDSM]

thats not AIR .50 its A/R .50 and thats Area/Radius , its the compressor housing size.
do you have better pics of the tubine housing side?

from here looks like a hybrid garrett T3/T04 turbo. TO3 5 bolt style housing

 

[tstkl]

I thought that was the ford 5 bolt turbine housing from the looks of it. who knows, take some better pics please.