HI everyone, If any of you that have pianos, and would like to know how old they are; I have a book that has the names of different brands and will tell how old they are. All you have to do is look in the inside on the plate, around the plate or elsewhere for the serial number. I have a 1980 Mason and Hamlin grand and a 1915 Waltham upright player. If you find the serial number, just let me know and I will look it up for you. Have fun, Gary