The most complete answer can be found at www.letterboxing.org Also www.letterboxing.info is excellent. Kyle Jen <justjen@xxxxxxxxxx> wrote: What are letterboxes and what does one do when one finds one? Just curious. We came across one today by accident. Jen No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.323 / Virus Database: 267.6.2 - Release Date: 6/4/2005