This is a Birthday mug for anyone! there is no #written on it. However if you need a gift for a milestone birthday, each mug has a certain number of candles, plus one for good luck! (Which is found inside the mug) 21 , 30, 40, 50, and 60 years/candles are hand painted around the base of the mug. Also I can make special order mugs with a name/ date. 6-8 weeks is the lead time for special orders.