AK3 = March 1941, ORR3 = July 1946, and LXX3 = February 1951. The KG and the unusual looking symbol are perplexing. K = May and G = 1938, but the K being stamped so much deeper, I'm not sure the K and the G actually go together. The Sunburst symbol is unknown but is found on quite a few Parker barrel flats.
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