Unregistered Will in delapidated condition.what to do?

My father made a will in the year 1955 on a plain paper with two witnesses. It is not registered. Over a period , it has come to a delapidated stage and may at any time break in to pieces..In such case , can I ge ta xerox copy of the same and notorise it,, before it becomes useless. will this notorised document stands in a court of law? If the same is registered by me, what will be the probable charges? does it run into thousands ?