[GeoNole94]

I noticed this GB auction and wanted to know if “P38IV” was how the earliest P4s were marked. This mark is new to me, but I admit to knowing relatively little about the P38 evolution, despite owning a P38, P4, P5, and P5c. Thanks!

https://www.gunbroker.com/item/778557266

 

[Absalom]

.... wanted to know if “P38IV” was how the earliest P4s were marked. ......

Nope, the opposite.

Those were the late-production commercial US export models from 1981.