I am so sorry for your loss.  The Will you have is not in and of itself considered a valid Will.  I would, however, take it to an attorney to review.  The problem here - besides the obvious - is that a Will needs to be witnessed and those witnesses would be the ones to help you to allow a court to enter this Will in to probate if it can be said that it is an unexecuted copy of the Will he did execute - says the exact same thing.  Good luck.