These stamps were issued to show the pre-payment of mechanical copyright royalties due under various Copyright Acts and General Regulations.

They were first introduced in the UK in July 1912, and had largely faded by the Second World War, although in Australia the continued well into the 1950s.
They were intended to be affixed to the record, pianola roll or cylinder box to show the royalty had been paid.

stamp1      Music Publishers

 

 

stamp2      Record companies

 

 

stamp3      Copyright Agencies

 

 

stamp4      Composers

 

 

Many thanks to Adam Miller