Ever wondered what goes on when the proprietor of secondhand record shop at the butt end of the world chucks in the towel and goes back to having a life??
…to make a black board work proper you have to colour it in completely with chalk and dust it off first…without the initial coating heavier marks are hard to remove… possibly the only useful thing I learnt at school… : )
Cured of what?
…to make a black board work proper you have to colour it in completely with chalk and dust it off first…without the initial coating heavier marks are hard to remove… possibly the only useful thing I learnt at school… : )