The School of Gann can provide chart paper specially designed for W.D. Gann methods. The chart paper provided by this School is 12 squares to the inch, which is the size that Gann used himself so that the plastic overlays (calculators part of the Mastering Markets workshop) fit on the chart paper precisely.
The chart paper holds approximately 34 years of monthly data, just 8 years of weekly data and 400 days of daily data. The minimum order is 50 sheets and the cost is $250.00 including postage delivered in Australia only.