The Tudor Rose is the heraldic emblem of England, and has featured on many British Coins for hundreds of years.
Twenty pence - British coin - was created in 1982.
A twenty pence coin has one 'edge' with seven 'faces'
It is a heptagon (7 sided).
The British 20 pence coin is made out of an alloy of 84% copper and 16% nickel.
7 Sides on a Twenty Pence Coin
A British twenty pence coin has seven sides.
7 Sides on a Twenty Pence Coin
The older design 20 Pence coin has a Crowned Double Rose on the reverse. The newer design 20 Pence coin has a part of the composite design of the British Royal Shield.
As with most 20p coins since their introduction in 1982 the date is on the back (the opposite side to the Queen's head) and such coins can be valued at exactly 20p. From the release of the new 20 Pence coin in 2008, the date is on the obverse (front) and it is still worth 20 Pence.
Britain uses pence, not cents, and only mints 20 pence coins, not 25. Please check your coin again and post a new question with its country of origin.
It contains 0% silver. Yes, that's a zero.
As of 3-6-11 it's 33 cents.