This is the Oodnadatta Track Tyre pressure guide hand written by the late Adam Plate from the Pink Roadhouse.

Or download the original PDF:

tyre-pressure-pdf

This file used to be located at http://www.pinkroadhouse.com.au/Pink/graphics/docimages/tyre-pressure-pdf.pdf . but they appear to have a broken site now.

Hope this quick posts helps ppl.