An older topic with the Vietnam era knives    https://www.usmilitariaforum.com/forums/index.php?/topic/20399-scabbard-and-handle-colors-on-the-knife-combat/#comment-142355

Camillius used that blade stamp I recall from 1962 to 1974 then the NY was dropped. The knife is Vietnam era but these could stay in the system for a few years. Also, the early style scabbards of the VN era were a color called ox blood having a more reddish brown than black color.   The number does look like a Social Security Number. The military changed over/ transitioned to using a Social Security number starting 1968-time frame and took a while to standardize I have read.

Funny you should ask.  I thought a “cut” op rod was the area where those 2 lugs are, right below the number, as that looks like a “cut” (between those lugs and the hole).  I was wrong; the op rod does not have that milled “radius” that rounds the right angle right( above the number).  It’s still a right angle.   As for paperwork, I know it existed but for the life of me, I can’t find it.  I should also mention that the trigger guard has no markings anywhere on it (I carefully searched every centimeter) and I’m wondering if that should have a drawing number.  Maybe that was replaced.  The sights definitely were, but they’re still WWII sights.  I read somewhere that many of the bolts of this period had polished faces, mine looks to be the same color as the rest of the bolt (I think).  I did a mathematical projection and hypothetically at least, this rifle (or the receiver anyway) would have been made the day after Christmas, 1941 (28,382 rifles made in December divided by 31days equals 917 rifles per day.  Last rifle of the month was serial number 429,811.  429,811 - 425, 175 = 4,636.  4,636/917 =5.1 days from the last day of December.  Fun calculation, but I’m sure there are other variables to throw it off.  

I think this would be the correct place to put it though you could ask a moderator to move this topic to the correct place. https://www.usmilitariaforum.com/forums/index.php?/forum/8-edged-weapons/

I just found an Army Register close to your 1962 date and looked up the name.

Very nice early Springfield. I guess in some ways it’s noteworthy in that after going through DCM a rifle that old retained what is most likely its original barrel. Any other history of the rifle would be extremely difficult to procure. Do you have his DCM paperwork?  That would be nice to have.  Also, what makes you think the oprod has been cut?  

A couple more have come along since the ACH even,  The Proto ACH (Advanced Combat Helmet) was the MICH (Modulator Integrated Combat Helmet. The ACH was then further evolved, by changing the materials of the shell making it lighter/stronger, using advanced, high strength thermoplastics. This is the ECH, the (Enhanced Combat Helmet). Then just in the past few 2-3 years, The newest standard helmet the The Integrated Head Protection System (IHPS) was adopted.

Looks clean inside… I think I can make out P-4A on it…   nice one

I would have trust issues with any of these items. Most of the fund items I have seen are now in shadow boxes with a mix of period and modern items along with the fund "card". While not only easy to replicate for profit, but many items from higher profile vets are also not their own period-worn items. Didn't someone say that Gunther Rall gave away 100s of his wings over the years? I, personally, have been given things by vets that were "the same as what I used" but not their actual issued items. This wasn't deception yet I found this out only when inquiring the back stories. That's still an honor but not really valued beyond what the same item, unnamed, would bring. If there were letters/affidavits describing the wings as, "These wings were worn while I was...", etc. it might be a different story. If they were a unique maker or style of AAF wing, that would be why I bought any of them. They aren't. I agree that the main value of these items is the autographs. Those though are often not very valuable because these same guys signed lots of things at airshows, reunions, etc. not to mention thousands of limited edition prints.   NOW, based on a comparison of autographs from the cards and the prints, they all three have some fairly critical differences. I'm no analyst, and our signatures morph over the years, but some of those, either on the cards or on the prints, appear to be proxy signatures. Am I the only one noticing that?      JMO, Dave