Vintage 1980s IBM 5251 Beam Spring Mechanical Keyboard Rare UNTESTED.

All keys spring back and click except for the "SYS REQ ATTEN" Key it does not click. I do not have a way to test it so it is sold as is.

The bottom corner shows a good amount of rust. The keys closest to that corner show rust on their springs. I believe the "SYS REQ ATTEN" Key is not working because the spring rusted out. This would make for a great resto project.

Please see photos for what you will receive. Thanks