IBM Markings

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   Hello all, I picked this IBM Up from a man that said it came from the CMP 20 years ago. It did not come with provenance nor have I requested it, so I'm not sure.
When cleaning, I noticed the AOB round bolt has many markings. Also, the receiver bottom, flat of the barrel and the tang are all scribed with the same number - P5 474 78 as best I can tell (receiver tang only P5)

Has anyone seen similar markings?

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KKCook Members Profile Send Private Message Find Members Posts Add to Buddy List Recruit Joined: Mar 19 2024 Location: Tampa, FL Status: Offline Points: 25	Post Options Post Reply Quote KKCook Report Post Thanks(0) Quote Reply Topic: IBM Markings Posted: Nov 25 2024 at 7:04am
	Hello all, I picked this IBM Up from a man that said it came from the CMP 20 years ago. It did not come with provenance nor have I requested it, so I'm not sure. When cleaning, I noticed the AOB round bolt has many markings. Also, the receiver bottom, flat of the barrel and the tang are all scribed with the same number - P5 474 78 as best I can tell (receiver tang only P5) Has anyone seen similar markings?

New2brass Members Profile Send Private Message Find Members Posts Add to Buddy List Moderator Group Dan Pinto, How Can I help Joined: Nov 29 2015 Location: CCC Status: Offline Points: 5527	Post Options Post Reply Quote New2brass Report Post Thanks(0) Quote Reply Posted: Nov 25 2024 at 10:53am
	The bolt was made by Auto Ordnance for IBM. CCNL 329 IBM manufacturers update discusses the additional markings with H being common on most round bolts. The letter below the lug is believed to be lot numbers. The electro-etched markings are probably a form of property marking.
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KKCook Members Profile Send Private Message Find Members Posts Add to Buddy List Recruit Joined: Mar 19 2024 Location: Tampa, FL Status: Offline Points: 25	Post Options Post Reply Quote KKCook Report Post Thanks(0) Quote Reply Posted: Nov 25 2024 at 3:48pm
	Thanks for the info Dan. I've got quite a few AOB bolts but this was the only one I saw with the additional markings. On a separate note, I have 2 Saginaw's that I'll add to your club survey.

Donnie Members Profile Send Private Message Find Members Posts Add to Buddy List On Point Joined: May 31 2018 Location: Newburgh, IN Status: Offline Points: 395	Post Options Post Reply Quote Donnie Report Post Thanks(0) Quote Reply Posted: Nov 26 2024 at 5:51pm
	Lend lease firearms are frequently electro stenciled when acquired. I have a Springfield 1903 that was returned from Greece. Those boys stenciled the bolt, receiver and stock and made other changes. I am unsure if the M1 30 carbines got the same treatment. Yours may be a Greek return. Others will know more than me.

KKCook Members Profile Send Private Message Find Members Posts Add to Buddy List Recruit Joined: Mar 19 2024 Location: Tampa, FL Status: Offline Points: 25	Post Options Post Reply Quote KKCook Report Post Thanks(0) Quote Reply Posted: Nov 26 2024 at 6:05pm
	That could coincide with it being sold by the CMP as the seller stated. I plan to reach out to Cathie for a provenance letter, but have a couple more serial numbers I was going to list and send at the same time. Thank you for the info.