Tecpearl
Tecpearl dates earlier than I previously realised. Although promoted by G. Herring from 1958, the buttons were advertised by Arrow Dart shirts as featured on their products from 1954 (even if they spelt it wrong).
Detail from the following adverts.
The Australian Women’s Weekly, 5th October 1955 page 64.
The Australian Women’s Weekly, 29th August 1956 page 48.
The Australian Women’s Weekly, 10th October 1956 page 28. Innocent days, when Dad smoking was sophisticated.