09/01/2026
Are you relying on standard serial charts to trace your WWII Ithaca M1911A1? You might not be getting the whole story.
Many collectors assume that Ithaca guns shipped in perfect numerical order. However, archival factory ledgers reveal massive inconsistencies: before June 1944, quality control loops and assembly variables meant numbers inside a single shipping container could wildly fluctuate.
In one extreme case from April 17, 1944, serial numbers 1209003 and 1279664 were packed into the exact same 50-pistol crate bound for Hamilton Field, California. That is a jaw-dropping variance of 70,661 units packed side-by-side!
Because standard sequential charts fail for the first year and a half of Ithaca's wartime production, looking at direct shipping manifests is the only way to accurately unlock your firearm’s true destination—including rare shipments like those sent to the OSS.Don't guess your pistol's history.
Read our full breakdown and use our database to get a free archival look-up of your Ithaca 1911A1.
Read the full article and request your free lookup: blackarmyresearch.com
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https://blackarmyresearch.com/articles/f/wwii-ithaca-1911a1-serial-numbers-by-year-shipping-records