ejection

Hello! Can someone please help me identify this ejection seat handle? I think it is from a t-33 but I do not know for sure. I have seen similar handles on everything from early t-33s and f-80s to what was apparently a MB MK5 from a f-4. Any advise or help appreciated. Thank you!

Martin Baker MK5 1957 ejection seat operator and maintenance manuals, minimun ejection speed:90knots, minimum ejection height: 0. government approved public manuals.