>>274780116
Those are Oculus Touch version 1 controllers, such as used with the CV1. 

Oculus Touch version 2 controllers have the LED loop over the top instead and lack the capacitive thumb rest but gain extra polling rate on both tracking and input response. 
Considering that nobody ever used the thumb rest then the only real difference you can be mad about is the weight distribution. They aren't even noticeably more fragile as many people can attest to have beaten the hell out of them with no lasting ill effect.