I recently inherited a Model 15-3 (4" barrel) from my grandfather that I'd like some info on. S/N 15K28##. Any help would be appreciated.
It also has two additional markings just below the S/N, on the cylinder side of the hinge: "11738" and "D1". I assume they're some kind of production markings (QC maybe), but any info on that would also be appreciated.
Thanks in advance.
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