No. The Cent is the only US coin in 1949 to have a letter [also known as a mint mark] near the date. The letter "D" represents the mint at Denver, Colorado; the letter "S" represents the San Francisco, California and the absence of a letter indicate the coin was struck at the US mint in Philadelphia, Pennsylvania.
The U.S. didn't mint any dollar coins in 1949, or the 1940s at all. However, Canada DID mint dollars in 1949.
No coins in 1949 are rare, but as with all US coins, high grade Mint State examples can be valuable.
No they don't all have mintmarks.
ALL us minted coins by stated value for a given year
All British "silver" coins from 1947 onwards were made from a copper nickel alloy.
they were all made in the past year
All British Halfcrown coins minted from 1949 to 1967 inclusive are made from copper nickel alloy.
If you have the entire collection of coins that were minted that year and these coins are all in uncirculated condition, the value ranges from $8 to $12.
All of these Pennies are listed as individual entries on WikiAnswers. If you type the question in as - "What is the value of a 1937 British Penny" changing the year each time, you will see the current estimates on value for each coin.
No circulating U.S. coins were ever made of solid silver. They'd be so soft they'd wear out very quickly. All "silver" coins are part copper for hardness.
1949... Winchester all brass shells were manufactured from 1879-1949 See more on my blog ozarksdetector.wordpress.com
The US Mint produces about 14 to 20 billion coins each year and they are all made in Philadelphia and Denver. Pennies, nickels, dimes, quarters, half dollars, and dollar coins are all made at these mints.