It looks really close to a TA-49, blade count and shape are the same.
If you don't have any engraved numbers on the compressor cover discharge, the last thing you could do would be to take the compressor cover off and measure the inducer and exducer of the compressor wheel.
Mark the orientation/position of the compressor cover to the backing plate with a black marker. This will help you reinstall it back to the same orientation. Take the bolts and backing plate clamps off, along with the vacuum hose and actuator, carefully tap around the perimeter of the cover and pull it off the turbo straight. We don't want to hit the wheel with the cover, and don't twist it off, because there is an o-ring that seals the cover to the backing plate.
Here are the specs from PTE website.
Compressor wheel
Inducer 2.290"
Exducer 2.950"
Wheel trim 60
Turbine wheel
Inducer 2.559"
Exducer 2.228"
Wheel trim 76
Here's a picture that shows you where to measure the wheels to get your inducer and exducer measurements.
Your pics show a Garrett turbine housing, which was available on the TA-49 from other vendors.
When you put the cover back on, use your marks to line up the cover, install the backing plate clamps and bolts and hand tighten in a criss cross fashion hand tight. Make sure the O-ring is intact and not torn before putting the cover back on.
HTH
Patrick