Opal-Glo Card, circa 1964.
Playing card: London Stores Ltd.
I love the graphics of the heritage Melbourne buildings. I also think its great that the store had such prestige that a gentleman would consider buying a pack of their cards. Below is part of an advertisement from 1916 and 1934 mentioning the cards.
For London stores tailoring buttons, see http://www.austbuttonhistory.com/branded-buttons/branded-buttons-tailors-buttons-g-l/#L
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