It's time we raise our tankards, and give a rousing toast to the intrepid SM58. As of this month (according to Shure Bros.), the mic is now fifty years old.
They're celebrating with a silver one, for some reason. But I believe the big 50 is supposed to be gold.
Maybe when it reaches 58, we'll be getting our gold ones.
http://www.shure.com/americas/news-events/press-releases/shure-celebrates-50th-anniversary-of-iconic-sm58-microphone
PS: I've seen some of them that look well over fifty.