Yes on the die crack.. Not seeing anything odd with the 3. There may be a small die chip within the top portion of the 3. Mint marks were placed by hand back then so their position/orientation can vary a bit. Given the lighting, the coin looks to be plated (reprocessed)--especially in the 3rd and 4th photos. Consider posting a pic of the rim, taken end-on. That could tell us more about the possibility of the coin being plated.



























