I have recently discovered that my medium egg was flown over from Japan by its' previous owner . This may account for the Japanese dialect hammered into the lid and the "no thermometer hole " Its grill is 14.75 inches and like I said before , is in eggsellent condition . My distributor though , has let me down . He sent me to a reputable dealer and had NO parts . I need a thermometer and a daisy wheel before I get started. Please note that I WILL post photos of this egg before and after the installation of the thermometer . I can't wait !!!! Maybe when you all see this egg , we will finally get to the bottom of this egg dilemma of mine .