This is an original, era-specific informational flyer from Grateful Dead Ticket Sales (GDTS), dated March 31, 1987. Printed on distinctive purple paper, this document outlines the strict "rules of the road" for the legendary mail-order ticketing system based out of San Rafael, CA. It includes the famous requirements for 3 \times 5 index cards, postal money orders, and the request for fans to avoid decorating their return envelopes to prevent mail theft. This flyer served as the primary communication between the band’s ticket office and the fans during the height of the 1980s touring era. A fantastic piece of logistical ephemera for any Grateful Dead historian, documenting the pre-digital era of the Deadhead community.