It's generally a join that runs at the circumference that you should worry about, though they tend not to plague the modern-milled coinage I have to say! If your coin is cast, you'd certainly notice a difference in quality, if you already have other examples to compare it to? Best get a couple of images up, to include the edge, as Peckris suggests, as it could be a fake from dies? Welcome aboard, it's always good to get some new collectors amongst us!