It's a euro clone to start with. That right there rules out any authenticity. 

I never got a stamp for all the Willys parts I got over the years, but I'll have an engine block, early gearbox housing, filterette and a set of front springs please 🤭

It's always great to  come home with stuff !

After a long search, was finally able got get some 6mm ammo to display with my Winchester Lee Rifle. This was the type of rifle the Marines used to defend the US Legation during the Boxer Rebellion. The small wood block printed Imperial Chinese flag was brought back by a Marine several years after the rebellion but before the dynasty fell. 

Thank you. Again that is most helpful. So it looks like the sabers with blades marked "National Lancers" that you have records on, as well as those that I've seen in the past, all made in 1837 and 1838, do not have any Federal inspection initials on the blade or quillion, nor are they marked with the "MS" Massachusetts ownership markings. However around the same time period Massachusetts did put the "MS" stamp on the 1838 dated Dragoon sabers (with steel scabbards and Federal inspection and ordnance markings on blade, quillon, hilt and scabbard drag) that they received from the Federal government under the 1808 Act to Arm the Militia. This would appear to support my belief that the sabers with "National Lancers" etched blades were private purchases by officers who had to provide their own sabers and were not purchased or owned by the state of Massachusetts. You've kept great records!

Here's another one...

Probably a reenactor piece, the helmet looks to be a Euro clone of some kind, maybe Norwegian, the brim is a lot more sharp compared to a McCord or Schlueter. The insignia definitely doesn’t look legit, but I don’t think this helmet was made to fool which is the good thing. True chinstrap as well with the T1 is definetly post so I would feel extremely confident in saying this ain’t a period done helmet.

When we interviewed a veteran that was “higher up”, and spent many years with JCRC in Thailand, he said -The JCRC SOG Knives where engraved locally in Thailand and only one or two shops where doing the engraving, most likely only one. This is why the JCRC engraved SOGs all follow the same engraving style / pattern.   As too the in country Vietnam engraved SOG knives there just ain’t no specific style or pattern too the engraving.    There is a good but a bit pricey(?) book out there that covers all questions you might have on the CISO SOG Knives and their history, including the silent professionals that carried these blades across the fence.   US Army Special Forces Fighting Knives Of The Vietnam War. THE SOG KNIFE The Definitive Collectors Guide. Volume I   Best Martin

@Spathologist Ames 1847 sabers available for purchase right now in 2025 aren’t particularly abundant. I do a lot of checking of sites and auctions, but I’ll also admit I’m not particularly interested in this model. I was doing research on the Montmorency type blade in the US and so was looking far and wide for examples of the original run. I’ll grant you that the initial order S&K 1840 sabers are far more rare.

Floridafireman, That’s a good start to a SOG Knife collection. Just a friendly caution, be aware for the rabbit hole, LOL. Those 1st Model Fat Guards don’t are quite rare, it’s not often that you see them for sale. I’ve only owned one of them over the years, it’s now safe and sound in DVS (David) collection. That 7” Japan Sword is a beauty.   Thanks to everyone for sharing your SOGs.