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I don't know what it means, but I'm pretty sure that stamp on the blade doesn't say "Bradley":
Is there more writing on that solid-looking collar on the end of the handle? It looks like an attachment of some sort. Given the date, military usage has to be a possibility.
Looks like an army pick to me, The Name and Numbers could be; Brand name (Brades). Date: 3rd month, 42 = 1942. The up-pointing arrow head stamp, is a military insignia. Foundry Location??