IBM Round Bolt Lack of Markings
Printed From: The Carbine Collector's Club
Category: The Club
Forum Name: Parts Markings
Forum Description: Questions and Answers
URL: http://www.uscarbinecal30.com/forum/forum_posts.asp?TID=4056
Printed Date: Apr 18 2024 at 10:49pm
Software Version: Web Wiz Forums 12.01 - http://www.webwizforums.com
Topic: IBM Round Bolt Lack of Markings
Posted By: ncin1911
Subject: IBM Round Bolt Lack of Markings
Date Posted: May 12 2019 at 9:25am
|
IBM Round Bolt from my 3.935xxx Was surprised to find no visible markings on Right or Left Lugs. Has this been observed before?       |
Replies:
Posted By: ncin1911
Date Posted: May 12 2019 at 10:17am
|
Some more right lug pics. Maybe something was there?    |
Posted By: tenOCEE
Date Posted: May 12 2019 at 10:28am
|
The first photo looks as though there was a stamp once. Maybe it was a B? It looks like they removed it. |
Posted By: wa***te
Date Posted: May 12 2019 at 10:55am
|
Or maybe it was never stamped. Sometimes in manufacturing mistakes are made. I have a M1D rifle I bought from the CMP. The only marking on the rear of the receiver is the serial number. No US Rifle Cal 30 M1, etc. Not ground out, dimensions are normal. I also have a Garand bolt that came on a DCM M1 that doesn’t have a mark on it. This stuff just happens and I’m sure wartime quotas didn’t help any. DON’T FIX IT. It’s almost certainly as right as the rest of the Carbine. ------------- Walt |
Posted By: New2brass
Date Posted: May 12 2019 at 10:56am
|
Second set of pictures you camera focused past the lug onto the bolt body. Suggest pulling the camera back farther to increase the depth of field. Another way to bring out the markings is lighting from the side or at various angles as opposed to straight on. this sometimes creates shadows into the markings which makes them stand out. As to your question of no markings. I have seen several where the markings were ever so slight that the eye did not pick up the markings. Only by playing with the lighting that the markings appeared. What type of firing pin? you need to look at where the hammer strikes. Normally we see the round bolt with the X on it in earlier serial number ranges. Could the finish of the lug have held it up till later?
------------- http://www.uscarbinecal30.com/forum/club-assistance-saginaw-receivers_topic4716.html" rel="nofollow - Club Survey Saginaw Receivers |
Posted By: ncin1911
Date Posted: May 12 2019 at 12:27pm
  Not much success I am afraid.
|
Posted By: ncin1911
Date Posted: May 12 2019 at 12:34pm
One more. |
Posted By: floydthecat
Date Posted: May 12 2019 at 12:37pm
| I have one bearing a lightly struck A only. |
Posted By: ncin1911
Date Posted: May 12 2019 at 12:42pm
Bolt in the rifle for good measure. |
Posted By: ncin1911
Date Posted: May 12 2019 at 12:50pm
Floyd; could I see a picture of that bolt, if not too much trouble? Thank you
|
floydthecat wrote:Posted By: ncin1911
Date Posted: May 12 2019 at 12:56pm
Sorry just saw the question about FP.
 |
Posted By: tenOCEE
Date Posted: May 12 2019 at 1:40pm
|
Condition of the bolt and all parts look similar don't they? |
Posted By: floydthecat
Date Posted: May 12 2019 at 2:08pm
It’s in a carbine at the moment. I will drag it out and post a pix later.
|
Posted By: ncin1911
Date Posted: May 12 2019 at 2:47pm
|
In case anyone is interested in looking over my IBM, here is a Google photo album I threw together. https://photos.app.goo.gl/RdwHyQ8dRxTx52iE9" rel="nofollow - https://photos.app.goo.gl/RdwHyQ8dRxTx52iE9 
|
Posted By: GotSnlB28
Date Posted: May 12 2019 at 3:56pm
|
That is a nice IBM. Sometimes parts are not marked. I have a Standard Products with an original barrel assembly that's never been messed with, however the barrel is unmarked except for the Standard Products proof P. All characteristics point to an Underwood but it's unmarked. |
Posted By: floydthecat
Date Posted: May 12 2019 at 4:20pm
|
Us old people don't always lie on purpose....sometimes, we lie because brain cells are dead. I knew something was not struck, but it's the A that is "almost" missing. I have not looked in that carbine for a while now.   |
Posted By: m1a1fan
Date Posted: May 12 2019 at 4:21pm
Sometimes the marks are easy to find, sometimes not. Sometimes the marks have been worn away, partially stamped or not stamped.   |
Posted By: ncin1911
Date Posted: May 12 2019 at 4:49pm
|
Thank you for the picture Floyd, much appreciated. I have flipped this thing every which way but still not seeing anything defenitive. The bolt, just doesn't want to talk.
|
Posted By: ncin1911
Date Posted: May 12 2019 at 4:54pm
| Thank you m1a1fan for the reply and pictures. It's the X-Files Bolt. |
Posted By: ncin1911
Date Posted: May 12 2019 at 4:57pm
Thank you; kind of partial to IBM's and happy to own this one.
|
Posted By: m1a1fan
Date Posted: May 12 2019 at 5:15pm
More about X marked bolts here:
http://www.uscarbinecal30.com/bolts.html" rel="nofollow - http://www.uscarbinecal30.com/bolts.html
|
Posted By: ncin1911
Date Posted: May 12 2019 at 5:20pm
Yep frequent those pages often in between my daily reads of current and old forum posts. My copy of WB! takes a fair share of abuse as well.
 |
Posted By: ncin1911
Date Posted: May 12 2019 at 5:23pm
|
In my research, I stumbled upon this old auction listing that I found interesting. https://www.gunsamerica.com/977002920/Jesse-Harrison-IBM-Corp-M1-Carbine.htm" rel="nofollow - https://www.gunsamerica.com/977002920/Jesse-Harrison-IBM-Corp-M1-Carbine.htm |
Posted By: tenOCEE
Date Posted: May 12 2019 at 7:22pm
|
That's your history and serial number right there. Interesting. Here are the two round AOBs I have close by. Both are lightly struck and one is higher on the right lug than the other. Also look at the underlying milling pattern evident. You can see two vertical lines on the lugs. In your first pic it looks like the B is almost visible where these have the B stamped. The B is on the right vertical line and the A on the left one. If yours does have a partial B, it's shifted leftward.   |
Posted By: ncin1911
Date Posted: May 12 2019 at 7:58pm
You got me off the couch looking at the bolt again tenOCEE. 
|
Posted By: tenOCEE
Date Posted: May 12 2019 at 8:05pm
|
It's exercise, man. Every little bit counts. |
Posted By: ncin1911
Date Posted: May 13 2019 at 6:59am
Going through all the replies this AM and realized I missed the first one. I have no intention of messing with what I believe to be an original late production IBM. Thank you for the reply and sharing of information.
|