I have researched this and cant find anything.Im not sure if this is made of resin or actual stone of some kind.It has a date stamped in it of 2003.As far as the clock i dont know if it works,it is like the back of a watch and i know i dont have batteries for this.I have looked closey at it and i dont see any damage or chips of any kind.You must come to my home to buy, cash only before noon during the week or anytime during the weekend,or i can meet you at the Lavergne Public Library between 2:30 PM and 3:30 PM Monday-Friday.I will also trade for dvd`s,cd`s.coins,stamps,sports cards,video games or anything small. Please leave a name and a phone number and i will call you.I am a night shift worker and i will call you during the morning hours.I am sorry i do not text i want to talk to a real person.I REPEAT I DO NOT TEXT,if i dont get a name and phone number to call your reply will be ignored,too many scammers,thanks