Check out these Shure microphones images:
Image by jschneid
On the left is one of the first Shure microphones. On the right is the 520DX "green bullet", favored even today by harmonica artists.
Image by reallyboring
Headquarters of the Shure microphone company (Murphy/Jahn, 2000).
Shure Beta 57A
Image by Roadside Guitars
Shure Beta 57A instrument microphone belonging to Matt.