Well, all you can see without removing the grips. The 88552 assembly number in the yoke cut will be found on the left side of the grip frame because it matches that frame with the yoke arm. There may be other numbers stamped on the grip frame that are fitter or inspector stamps like the G3. However, you have the significant numbers and the model number. What else do you want to know?That's all the numbers on the weapon
Thanks for all the info. This confirms what I thought. It was the pistol that my grandfather was issued as a city bus driver. They were required to go to the police academy to the fire arms class to become certified to carry on the bus. Kinda crazy.
I think that's pretty cool requirement, carry a firearm and be trained with it!
Now your talking some common sense there.