Rear Sight Transfer Stamp needs fresh eyes

[painter777]

Just posted part of this on The CCCF in the miss stamped area.

About 10-12 years ago a local came by to use my tools to R and R his rear sight.

Here is a Shielded H over stamped with either P.I. or H.I. that came off his Inland 5,219,??? mil that the guy put a Repro Flip on. He was here because I had the tools and said he was going to keep the sight.
Barrel was Inland 5-44 with round bolt and Type II band marked //.
I tried to talk him out of it because it, IMO was a Original Carbine.
Me having a crisp 5,219,465 just like it about ~350 numbers away, best I can recall his SN#. My sight is HI with No periods between letters.

I thought it was a H.I. Over Stamp all this time, Until looking at the picture again today.
I'm now wondering if the Shielded H is Over Stamped P.I. or H.I.

Anyone willing to take a guess ?

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