The Cavern in '67

Photos from https://www.flickr.com/photos/22081583@N06/ and comply with creative commons copyright

I love seeing photos of the original Cavern Club before it was torn down and the years after the Beatles is pretty neat to see.   These photos show a band named "The Wildcat Strike" that played the Cavern Club during the summer of 1967.    In the last photo you can see a marker behind the drummer?   That is on honor of the Beatles.    I would guess that it was the first such thing in Liverpool and I wonder whatever happened to it.