The spots look pretty much like the ones on the Greyhound, only they are much harder to see since his fur is much longer and denser
. Charley's nose has always been black though. Is a year and change considered 'getting older'?
They aren't new, but they have slowly been spreading and getting bigger, there's no pain when I poke then a the skin, other than being darker, feels normal (ie not dry or bumpy or anything). The picture below is of his front 'armpit'