A week or so ago there was a question about a RIA barrel with a mfg. date of 1922. I think JB said RIA did make barrels that late.
On the table next to mine at this weekends gun show there was a RIA barrel dated 10-28 with a steel lot code of C122. Also at the 6:00 on the muzzle there appeared to be a very faint star gauge mark. No star gauge number on the barrel.
On page 207 of Brophy's `03 book it mentions that Rock Island did star gauge barrels.

Questions I have from the above information:

How late did RIA mfg barrels?

If RIA did star gauge barrels, how and/or did they mark the barrels?

Could this barrel be one or is it just a fluke?

Thank you for any and all help
Chuck
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