Modified coins have no collector value.
There is no mintmark on the 1921 British Penny, they were all minted at the Royal Mint London.
UNCIRCULATED > Up to $75.....Circulated from $4.50 to $22.50
King George V
The 1921 Greek Penny can be valuable depending on condition. The average price is between $15 to $50 for each coin.
Any plated coins are only worth their melt value. Fortunately, as of early 2010 that comes to about $14 retail, or about $10 wholesale, for a 1921 Morgan dollar.
British predecimal Pennies from 1860 to 1967 were made from bronze. Although the exact percentages of metals used to make up the bronze alloy varied over the years, the 1921 Penny was made from 95% copper, 4% tin and 1% zinc.
One question at a time please. Answers to all of your coins should appear in WikiAnswers if you use the format - What is the value of a 1910 British Penny
One question at a time please. Answers to all of your coins should appear in WikiAnswers if you use the format - What is the value of a 1910 British Penny
Between 38 cents and $35. In the future please add the condition of the coin so I can value it more precisely for you.
A Greek one penny with a 1921 date on it is worth about $10. The exact amount will depend upon the condition that the penny is in.
Older Lincoln cents (Pre-1934) do have better collectible values than others, but it depends on the grade. A 1921 with no mintmark in average circulated condition is 25 to 75 cents.
A British 1921 Maundy (silver) Penny, uncirculated and in absolute mint condition could fetch up to £15 GBP. If it has been circulated but still in good condition, it might fetch up to £8 GBP. A reputable coin dealer will be able to give a more accurate valuation.