So is this known? Played? Worth anything? This is where I should pay more attention, I have had literally hundreds of 70's records like this, all UK demos, and I just gave them away, I once gave a box of about 400 to the cats protection league in Hastings, my mate used to get them sent to him by the record companies and give them to me, the only one I kept was the Ramones Blitzkreig Bop picture sleeve!