Fan Letters The majority are from America and are positive. Where a file was empty it has still been listed to maintain the original order and reflect the breadth of the letter senders geography. The 'extent' field details how many letters [described as items] are in each file, some description contain names [not always complete] of letter senders. SK/13/8/6/10 is currently closed under the Data Protection Act until 2072. [1971]-1972