Help Identifying the Stamp on this Flat Bolt
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=5886
Printed Date: Apr 23 2024 at 5:17pm
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Topic: Help Identifying the Stamp on this Flat Bolt
Posted By: Dirty30Carbine
Subject: Help Identifying the Stamp on this Flat Bolt
Date Posted: Nov 21 2021 at 9:12pm
I recently pickled up a rearsenalled M1a1 and upon getting it apart, the bolt has a stamp on it I can't identify, I have asked several friends and we are all in the same boat. several ideas have been brought up. ill attach the best photo I can get, but if anyone messages me their number or email, ill send a video that's a little clearer. it is a blues flat bolt with the proof punch on it. 
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Replies:
Posted By: painter777
Date Posted: Nov 21 2021 at 10:28pm
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Hi Dirty 30, Odds are it's a Partially struck H.U. A bolt made by Howe Machinery for Underwood. We see these Miss-Stamped every now and then. I believe when they try stamping too close to the bottom of the Bolts left lug, the top of the stamp hits part of the lug, Distorting the marking..... Just like your example. Sometimes when struck like I described they may look like just the bottom half of the H. with a short topped U. Sometimes the H looks like a R with part of the top missing. It all depends on how badly the stamp was impeded by bumping the bolt lug. **OK, I found it. Look at this article, which includes some other miss-stamps... etc 1 being like your H.U. bolt. Link: http://www.uscarbinecal30.com/forum/opps-i-did-it-again-unusual-parts-markings_topic2597.html" rel="nofollow - http://www.uscarbinecal30.com/forum/opps-i-did-it-again-unusual-parts-markings_topic2597.html HTH, Charlie-P777 ------------- Living Free because of those that serve..... |
Posted By: painter777
Date Posted: Nov 21 2021 at 10:34pm
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From the link I added. This one looking like a partial R. and U. because of the top of the H missing  ------------- Living Free because of those that serve..... |
Posted By: Dirty30Carbine
Date Posted: Nov 21 2021 at 10:49pm
| It looks almost just like the H.U. Thank you so much. |
Posted By: New2brass
Date Posted: Nov 21 2021 at 10:54pm
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We do not know for sure that it was Howe, But I am sated my case as to why it is probably Howe. It could possibly be Petrolium Heat and Power http://www.uscarbinecal30.com/forum/underwood-subcontractors-az_topic5317.html" rel="nofollow - http://www.uscarbinecal30.com/forum/underwood-subcontractors-az_topic5317.html Maybe one day we can check the box by finding concrete evidence. The one in odd markings I was thinking an outside possibility of K.U as
well as R.U., but most likely H.U. as stated bashed up a bit. If there was a K.U you would know who I say made it. The R.U. sparked the seed of the article above as there is no R ( or V, X, Y, Z) subcontractors to Underwood. This lack of R was instrumental in my theory of the system Underwood used.
------------- http://www.uscarbinecal30.com/forum/club-assistance-saginaw-receivers_topic4716.html" rel="nofollow - Club Survey Saginaw Receivers |