Only ever seen screwed. It was far too easy to punch a hole and screw one on rather than screw with glue or solder.

Gerard, That five digit alpha-numeric code is called the "Ammunition Identification Code" (AIC) which was introduced by the U.S. Army in the 1920s and used until 1958.  It could be used to simplify the ordering of ammunition and make it easier for the troops in the field to identify the correct stocks without deciphering the entire nomenclature on a box or crate. The R indicated artillery ammunition, 1 indicated fixed and semi-fixed ammunition, Q represents a specific weapon (obviously Howitzer 105mm M2...) the next letter indicated type and model of ammunition (V, S and C being various models of HE) and the final digit indicated the packing method, in the case of small arms ammo, cartons, linked, belted, etc.  If you search for Ammunition Identification Code, Wikipedia will show you more detail.   I have no idea, nor any reference indicating the meaning of the large "P" shown in your examples.  

I picked up this Ww2 engraved good conduct medal today at a local military show. It wasn't labeled as anything when I bought it.   Upon getting hom and looking into it I believe I found who it was awarded to.   The medal is engraved Henry Bulwin. When I look online i only see one other person with that name and he would have been to old for ww2. Now I am not 100% saying its this person but with the information I have available at the moment I am going to say I am 95% sure its him.   Bulwin served with the 80th infantry division during ww2 and from what I can see online was wounded 3 times September 11th, 1944, January 19th, 1945, and February 8th, 1945. He was also awarded the combat infantry badge. I also seen he enlisted in 1942.

hope this helps  

Found the image again, this time at www.american rifleman.org. The article is "Stepping Stone To Victory: The Guns Of Sicily 1943," by Tom Laemlein, posted on December 16, 2023. The image is captioned, "Landing on Sicily in a Higgins Boat, these Coastguardsmen are armed with M1903 Springfield rifles,"  It is credited "Image courtesy of National Archives." Curiouser and curiouser.

This box was made in Jan 1954 and loaded in Feb 1954. Cheers

A few more. ^& TFS is for a munitions load crew, A Flight is for the 77 TFS. The 4th Tactical Hospital was made in Korea during the Pueblo deployment, and the 4409 CCTS was an OV-10 training unit.

aren't we all? I collect mainly anything  US 20th century, but have been trying to narrow down my collection to ww1, ww2, early Nam' stuff, and Desert Storm/shield stuff. really just stuff I think looks cool or whatever I get hooked on that year. I also do a lot of reenacting and displays, so anything that displays well I'll grab.

I recrntly was given this holster and have been trying to figure out the manufacturer and the name/service number hand written on it. The manufacturer stamp is partially worn down, it kind looks like two digits S &R maybe. Any help would be appreciated.