The hard-stampers I worked with in my Industrial Engineering days were fixed; the part was rolled over the stamp set.
Off-set ink stampers transferred an image to a fixed part.
After evaluating the patterns of the stamps on my distributors and Alternators this is how I had "visualized" the process, I appreciate your knowledge, thanks for the confirmation.
The ink stamps were they done using a Pad stamper?
I have seen videos of emblems having the colors applied using one of these. (Pad stamper)