The odds of finding the tile are very low. THe 8x8 size is not made by many manufactureres any more. THe tile that you described sounds like a tile called Charleston Green by Lauffen and then it was copied by Summitville. To the bst of my knowledge neither companies make the tile anymore. Most suppliers don't keep old tile around as it isn't worth the trouble. Sorry!
Carlo Americo Odella
Europamericantile.com