For what it's worth, IDing the snap manufacturer, AI states (for what it's worth): Koh-i-noor is a Czech-based production company, Koh-I-Noor a.s., famous for inventing and mass-producing the modern snap fastener (also known as a press stud or push button). Founded in 1902 in Prague by Jindřich Waldes and Hynek Puc, the company holds the original trademark named after the legendary Koh-i-Noor diamond. [1, 2, 3, 4] Koh-i-noor's global presence expanded rapidly in the early 20th century, notably with factories in Long Island City, New York (under the name Waldes Koh-I-Noor). The original Czech firm continues to manufacture a wide variety of metal haberdashery—including safety pins and snaps—today. [1, 2, 3] Koh-i-noor (founded by Jindřich Waldes and famous for its snap fasteners) was primarily a European haberdashery and snap-button manufacturer. While they had operations in the US under Waldes Koh-I-Noor Inc., government documents and historical militaria forums confirm that the official contracts for the brass and steel fasteners on U.S. M1923 belts were awarded to domestic suppliers like United-Carr, Scovil, and Rau Fasteners. Koh-i-noor snap fasteners (and Waldes & Co.) have historical ties to military contracts, particularly during the mid-20th century. During World War II, the Waldes Koh-I-Noor facility in Long Island City, New York, retooled its manufacturing lines to support the war effort, producing munitions components for the U.S. Army and Navy. [1] Specific details regarding their military and historic presence: Vintage Gear: Koh-i-noor is frequently identified by collectors on authentic vintage U.S. military gear, including the snap fasteners and handle retaining straps on the Vietnam-era M8A1 bayonet scabbards. [1] Global Military Apparel: The company's snap fasteners and metal hardware continue to be recognized in the apparel industry as a global supplier for workwear and military uniforms. 

One other point I failed to make was none of the students who graduated from Moseley's schools earned their actual pilot wings when they graduated from his school, as his schools were only Primary and later Basic flight schools and they didn't earn their actual wings until they graduated from Advanced flight school.     In googling LeBailly to try and find photos of him I found quite a few sites with info about him, but no photos yet.  I will check my book collection later to see if he is shown in any of them related to his WWII service.  One site I found mentioned the auction where his items were being sold, including posts from some of his younger relatives that they were not aware that the items were being sold.

I’ve never seen a handwritten capture  certificate like that.  Very interesting!

Does this cartridge belt look familiar to anyone? I have tried to identify the belt: country of origin, manufacturer, army, production date? up till now no luck. It seems to be based on the old M1923 model. Colour OD7, with snap buttons. Inside the marking KOH-I-NOR is visible. No other stamps or markings. KOH-I-NOR is a Czeck company, in business since 1902.   This belt looks different. Maybe eastern european army surplus?  Maybe not even army related?    If anyone  knows this specific belt please let me know. thanks for looking.    Best regards

I do not. Perhaps @Ranger-1972 or @Jamecharles does

No, they're not. 😊   They are scheduled monuments now and although most are buried in the dunes and access is not allowed (they are bat sanctuaries), they are still there. Source: I live a 10 min analog bicycle ride away from Scheveningen.   Apart from the already mentioned Haagse Bunkerploeg there are several books (in Dutch) on the subject of bunkers in/around The Hague, which was a designated 'fortress' in the Atlantic Wall, complete with (interior) photos, plans etc.    

Here is a listing from Major War Supply Contracts  for Allith-Prouty, Inc., of Danville, Illinois. One of the contracts, dated 6/44 - 10/44, is for Packboard Attachments:     I think the contract serial number is actually "5492" followed by a code or symbol.        Allith-Prouty factory, trapezoid shaped building at bottom of image, date unknown.      To date, I haven't seen an Allith-Prouty Packboard Attachment.  

Carentan it is indeed, a quick peek on Google Streetview confirms the buildings haven't changed that much but I'll leave it to you to do a comparison photo 🙂           I had exactly the same, a Cloudflare block for 8 or 9 days so I guess it was a geo-location issue? Anyway, happy it was solved!    

Very nice find.   I would be thrilled.

Very interesting site, thank you for that treat.