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.
Never
It is called the penny black for obvious reasons.
The British Penny Black stamp was was the first ever postage stamp. It was first issued on May 6, 1840.
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 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 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.
The Penny Black is the first stamp ever issued. People interested in something know about the most important firsts.
It was a postage stamp issued in Great Britain on 1 May 1840, for official use from 6 May.
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.
Silver plated or just looks silver. No silver one cent coins have ever been made. It's only face value unless someone wants it.
Wheat pennies or any other US pennies were ever made of silver. They would be worth more than a dime if they were made of silver. A regular 1941 wheat penny is worth around 3-7 cents in circulated condition.