I'm pretty sure the one on the right is a Tech, but not so sure about the two in the middle and the TTO on the left.
This is what happens when you stay up late reading stickied razor cleaning threads, you get the urge to find some razors that really need cleaning!
Eleven bones on Ebay, and they come with a brush, bowl and atomizer.
The bowl and atomizer I don't need, but the threads on the brush forum regarding restoration are calling out to me...