The Charmander (57 / 112) card can be found in the Firered and Leafgreen set.
Recently sold 2 times and based on those sales is worth around £28.06.
Currently, there are 3 open listings for this card on ebay.
This card sells in the range of £20.45 to £35.67, making it quite stable.
This Common card was illustrated by Kouki Saitou.