Hi Lisa -- These British coins catalog as follows:
worn: $5 US dollars approximate catalog value
average circulated: $15
well preserved: $45
fully uncirculated: $180
Thanks to Tony Clayton for this picture of an almost uncirculated piece. The series starts in 1902 and ends in 1910, and all dates are about equal in value.
Be sure you understand what 'catalog' means by using the Important Terminology link at the left. Catalog values are inflated values and the actual buy and sell price will be influenced by any damage that has been inflicted on the coin.