Circulating pennies were struck in silver until 1781, when silver increased in price and had to be replaced with copper. Silver pennies continue to be struck as part of special sets called "Maundy Money" (Google it for more info) but they do not circulate.
I checked a guide for Maundy sets and a 1919 silver 1d coin would retail at about $40.
Never
No general circulation Australian Penny was ever minted in silver. If you have an Australian 1911 silver Penny, it is because somebody plated it, and it is subsequently worthless as a collectible coin. There were a few silver Pennies minted in later years, but they were minted as a trial and never released.
A 1973 silver penny was never minted or issued. There are some aroung, but they have been silver or nickel plated after they were put into circulation.
The earliest record of the penny by name in history is from 790 AD when the first British penny was minted. It was originally pressed in silver.
No such coin was ever minted.
Priceless, you have the only one ever minted.. (does not exist)
Cupronickel, not silver. The only silver nickels ever minted were made during WWII.
The only Crown (Five Shilling) coins minted in Australia were the 1937 and 1938 Crowns which were round. The only square coins minted in Australia were copper/nickel coins of Halfpenny and Penny denominations in 1919, 1920 and 1921 as trial patterns and were never put into circulation. They all featured a kookaburra on the reverse.
No US one cent coin was EVER struck in silver. It may have been plated or look like silver, but it's not silver. It's just a penny.
The 1943 Denver copper cent. It was recently sold for 1.7 million US dollars.
No silver 1 cent coins have ever been struck by the US Mint. So no none are out there.
Neither Canada nor the US ever made a silver penny. Silver has always been too expensive for such a low-denomination coin. Anything you have that appears to be silver is almost certainly an ordinary cent that was plated.