Glad I found this discussion.

I have a Model 27 holster along with a CHP Model 68 revolver.
They were bought at different times. NOT an original paring.
I thought that they belonged together.

My holster is marked/stamped with CHP on the back with other markings.

Were all of the Model 27 holsters marked with the "CHP"?

Later Edit: After reading more posts, I will mention the my Model 27 has K stamped toward the muzzle end.
So it must have been a later manufacture when they were sized for the K frames.
The CHP Model 68 is a K frame.

Bekeart