If it's a bronze coin about the same size as a modern twopence, then it's actually a halfpenny.
This price guide is American and in US dollars, but should give an indication.
Any coin of 1914 will have King George V's portrait on it. If it's actually a bronze twopence with Queen Elizabeth II's portrait on it, then you are misreading the date; perhaps it's 1974, though that date is unlikely as those were only issued in Proof sets.
Don't say "infinitely" when you mean "very"; otherwise, you'll have no word left when you want to talk about something really infinite. - C. S. Lewis