The last Australian Penny was minted in 1964. Their place in the Australian currency was replaced by the 1 cent coin in 1966.
That wasn't something done at the mint, rather the cent was likely plated with zinc or nickel. So it has little to no collector value. The US government has never struck a penny in silver.
It is worth a penny
The last "Wheat Penny" was made in 1958, a cent date 1972 is just a cent.
They aren't. A lot of 1972 quarters were minted, none of them contain silver. They are worth only $.25.
All circulation half-dollar dated 1971 and later were struck in copper-nickel. The last half dollars containing silver were minted in 1970 and silver proof sets weren't minted again until 1992. Please see the Related Question for more.
the silver bullet was 1973 ,not 1972 !
It is worth face value.
No half dollars intended for circulation minted since 1970 contain any silver. No 1972 half dollar has any silver. It is only worth 50 cents.
No 1972 US quarters have silver in them, the last year for silver quarters was 1964. so spend it
A 1972 silver dollar minted in Philadelphia is likely a Eisenhower dollar, which was made of copper-nickel rather than silver. In circulated condition, it is worth its face value of $1. If it is uncirculated, it may have a higher value to collectors, typically around $2-5.
No 1972-S small date varieties are known.