shower thermostat

I have a faulty thermostatic cartridge in my shower mixer. As we bought the house recently I dont know the name of the mixer. Can anyone advise the make and model of the mixer based on the attached images, Thanks

Hello community, Recently I bought a shower system with thermostatic mixer. And I got a problem, thermostatic regulator gives only cold or hot water. I can feel transformation just for a second or so. As I start my research on the internet I notice that most common thermostat pictures show hot...