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unpublished letterbox

A letterbox with a clue that is not publicly available, but are distributed by word of mouth. You might create an unpublished letterbox in your own backyard for the enjoyment of houseguests, or provide clues to an unpublished letterbox only to other trusted letterboxers. You can include unpublished letterboxes in your PFX count.


 

 

 

 

 

 

 

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