Old-fashioned wall telephones, where if you weren't familiar with using, before long you were talking into the ear phone and trying to listen in on the microphone!
I mean the roast. Roast lamb back in the day was an Australian tradition for Sunday lunch. It was when Australia rode on the sheep's back -
The phrase "Australia rode on the sheep's back" means the country's national wealth and high standard of living during the 19th and early 20th centuries were built primarily on the back of the wool industry. For over a century, wool exports were the backbone of the Australian economy. [1, 2]
The expression highlights the massive global demand for Australian Merino wool, which dominated exports, funded national infrastructure, and symbolised the Australian identity. This era of prosperity lasted from colonial times through a major post-WWII wool boom in the 1950s, before the economy diversified into mining.
These days lamb is very expensive. It is now a treat to have roast lamb.