2758s that aren't really 2758s

[CPUShack]

So I was scanning some EPROM for The CPU Hunter and noticed the dies on these 2758s

Note the National looks similar to the first Intel 2758 with bond wires attached to all four sides

The Intel on the far right is a later die version, bond wires on the top and bottom of the die only

I had noticed this before, but on 2716s

Upon closer inspection?

Yah all 3 of these dies are 2716 dies with half disabled LOL