|Whilst sorting Ruth Harker's
postcard collection we have found that on certain cards the
stamps appear to have been removed and then re-affixed, but
not necessarily to the correct card.
We're not quite sure why this was done but it does make sorting
the cards into chronological order very difficult. To be safe,
we have only dated a card when we can be certain that the postmark
is correct. Any cards that cannot be reliably dated appear in
the date unknown section.