Queensland State Archives posted a photo:
The grapefruit is a member of the citrus family and comes in many varieties determined mostly by colour.
The bulk of Australia’s grapefruit supply comes from the Northern Territory and Western Australia. Queensland and NSW and Victoria along the Murray Valley also produce and supply grapefruit in Australia. Grapefruit is available almost all year round, with the exception of January.
The varieties most common in Australia are the Marsh, the Thompson, the Wheeney and the Texan Pink. The Marsh, Thompson and Wheeney have predominantly yellow fruits. The Marsh has fewer seeds. The Texan Pink features the pink coloured fruit.
The grapefruit originated in Barbados and were originally named the ‘Forbidden Fruit’. It is believed the grapefruit is a hybrid of the pomelo fruit and the orange.
When buying grapefruit avoid fruit that have soft spots, especially near the stem. It is also good to avoid wrinkly skins but don’t