Depending on which side of the footpath you were on in the Australian 1970s, Sharpies were either misunderstood working class rebels or teenage thugs and bullies.
One Sydney Sharpie who went by the name of Big Victor (name changed to protect the guilty) would wait at suburban railway stations looking for long-haired surfers with the intention of breaking their surf boards and, if need be, a bone or two in the process. The Sharpies in Melbourne may have been different.
This is their soundtrack - ironically of mostly long-haired bands. The only real sharpie bands would have been Lobby Loyde and the Colored Balls and Buster Brown, whose singer Angry Anderson was a sharp. Certainly, Billy Thorpe had a sharpie haircut for while. The music is Australian 1970s pre-punk heavy rock/glam and as a collection that's representative of this era, it is nothing short of excellent.