Hey Stoker,
Ha, you got my interest now ! What the heck do you have there

Nice clear pics, so no mistaking what's there and/or not there to be seen , eh ?
I DO NOT see any NI CR (NICHOL/CHROMIUM) on this head ...at all ? Am I missing seeing that...I have bad eyes
If those letters are MISSING from head , please confirm that ?
The hash (#) mark and the date is a first for me. This 'date' being stamped in, as opposed to being part of casting process, indicates to me that this is an 'aftermarket' model. If the NI CR is also missing, who knows from what source this may have originated
And, the marking that I'm looking for is not there ! Nor is the NICR.
I have to say, that from several sources who say that there were MANY after market makers of this head , that is, mimicking Scholfield/Cragar original OHV Heads. I do not know the fact/truth of this and doubt that there were...'MANY'. However, stuff happens.