Homecoming Grouse

hi , I am completely new to this so be patient!! A long time enjoyer of whisky, last year I was blessed with a bottle of 37 year old famous grouse, there were 250 made. One for each year since the birth of Robert Burns's life, I would like to know if there is any way of knowing how many are left , and what they are now worth ? I can supply Photos if required, although not at the moment.