One of the more odd hobbies I have, is that I collect microphones.
I have several from the 60's and 70's, right to some modern ones.
Some interesting tidbits I've come across, is that the old singers knew what mic enhanced their voice.
Bing Crosby had an RCA 44 BX he hauled around.
And Sammy Davis Jr. was one of the very few performers on NBC's Tonight Show that used his own mic.
A Shure 546 Unidyne III That was gold plated. (This isn't all that strange, Shure made many models with a gold finish.)