An interesting oddity, Postar Watchits give a fair representation of the UK Charts in 1975. It might have even more interesting if they had been produced a year or so later!
The six sheets share copyright between the respective acts' management & 'Watchit Co'. The artwork speaks for itself, & was presumably supplied by the client.
They all share the same serial number: GK215.
Picture Credit: The SPLAT Scan Archives
© Tom Vinelott 2016