You are looking for a plastic jar, containing a geocaching logbook, letterboxing logbook, letterboxing stamps, a pen and some swaps. Please do not remove the stamps from the cache!
Geocaching
There is a logbook clearly marked for geocaching, which geocachers should sign.
Letterboxing
There is a second logbook clearly marked for letterboxing, together with a simple stamp. Letterboxers should stamp this logbook with their stamp.
To view the letterbox listing on letterboxing.org, click on the related web page link above.