Why is "Shilling (Australian)" trending?

Wikipedia Overview

The shilling, informally called a "bob", was a type of silver coinage issued by the Commonwealth of Australia, that circulated prior to the decimalisation of Australian coinage. The Australian shilling was derived from the British pre-decimal sterling pound system and was first issued following the passing of the Australian Coinage Act 1909, which established Australia's first formal currency system. The shilling was issued as part of Australia's silver coinage, which included the two-shilling (florin), the sixpence and the threepence. The shilling was minted from 1910 until 1963. During this period there was one significant modification to the design of the Australian shilling, the change in its reverse design, which occurred in 1938 when the design was altered from the Australian coat of arms (1910–1936) to the visage of a Merino ram's head (1938–1963).