A few of the 19 & 23 toys...
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Sm port 1919, late 1919, NRA19 w/inset guard, NRA19 later w/non-inset guard, 23A early, 23A late, 23AA
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Factory checkered 23-D, late style 23-B, early 23-B, early 23-C, 23AA, 23AA (both with Weaver 29-S mounted w/factory D&T holes)
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19-H .22Hornet, 19-33, last version 19-33, 87M Springfield