Just purchased a 1988 370 RM (MG). Couple of questions if anyone can help:

1) The Certificate of Authenticity and Origin has "DUPLICATE" typed at the very top of the form. Otherwise, you wouldn't know that it's not the original. Did RIC issue duplicate COA's for this guitar if original was lost?

2) Can anyone experienced with this model offer any input about the useful life of a 9 volt alkaline battery before it degrades the sound. How much play time should I expect before I have to replace it? Recall some comments somewhere that battery life is pretty short, but I would like to know what to expect. Thanks.