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Spotter’s Report: IBM AO Carbine Receive Ring

Printed From: The Carbine Collector's Club
Category: The Club
Forum Name: General Discussion
Forum Description: Carbine Related
URL: http://www.uscarbinecal30.com/forum/forum_posts.asp?TID=3876
Printed Date: Mar 29 2024 at 1:52am
Software Version: Web Wiz Forums 12.01 - http://www.webwizforums.com


Topic: Spotter’s Report: IBM AO Carbine Receive Ring
Posted By: m1a1fan
Subject: Spotter’s Report: IBM AO Carbine Receive Ring
Date Posted: Feb 09 2019 at 6:51pm
The following was observed on an AO IBM carbine. In addition to the multiple stamps, it’s strange to see different fonts on the same receiver ring like the A and E. They look like IBM’s and AO’s, but not sure how could that be possible?




Replies:
Posted By: David Albert
Date Posted: Feb 09 2019 at 9:03pm
I'm wondering whether this may have been where a die was changed out. It looks to have chattered at least twice on each die.

David Albert
dalbert@sturmgewehr.com

-------------
NRA Life Member
Past Pres., The American Thompson Association
Amer. Society of Arms Collectors
OGCA/TCA/Carbine Club/GCA/IAA
SAR Writer
Author - The Many Firearm Designs of Eugene Reising
Eagle Scout


Posted By: m1a1fan
Date Posted: Feb 09 2019 at 9:49pm
Yup, that is what I was thinking as well. CCNL 345-6 shows the receiver ring fonts for IBM and AO and they look different. The flat top 3 is shown as IBM. The top A in Carbine looks like IBM. The serif 1 is shown as IBM. The bevel is marked AO. Hard to tell for sure with such a poor stamping. How would one determine which stamps were made first?



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