The board supports making price or time projections separately or together. The square in the center goes from one to nine (for Gann’s square of nine). There are three rings over concentric squares. The lan- guage used to explain the theory is sometimes loaded with jargon, such as: “When T FIGURE 1: THE GANN BOARD. The accompa- nying manual contains more detailed instructions. G ETTING STARTED The CD introduces you to the board’s use and each of the three wheels.

All of the disks and the strip are secured with a bolt and nut. The attached strip is a line that spans the calculator’s diameter, with a bull icon at one end and a bear icon at the other. The third disk identifies 60-degree in- crements. The edge of the next smaller disk iden- tifies the degrees of a circle (Figure 2). The green dates move in a counterclockwise direction, while the red dates move in a clockwise direction. The largest of the three clear plastic disks has a set of green and red dates along its edge. The numbers in these con- centric squares represent the prices to use. The center square consists of the numbers one through nine, while the next concentric square consists of the numbers 10 through 25, and so on. T HE CALCULATOR The underlying board has Gann’s square of nine printed on it. Actually seeing the calculator was neat (Figure 1), and after a look at the materials it came with, I anticipated some interesting explorations. Gann’s square of nine†, but its use remained a bit enig- matic. Past S TOCKS & C OMMODITIES articles have looked at W.D. When I first saw this board I knew what it was immediately. Peterson he Gann Natural Squares Calculator package con- sists of the calculator it- self, which is a 19-inch by 19-inch Lexan board with three clear heavy plastic disks and a strip attached at the center, along with a manual and a CD-R OM. Price: $547 plus $12.95 shipping by Dennis D. Sabina, OH 45169 Phone: 800 613-8919 Internet: Product: Calculator for estimating times and prices following W.D.

Peterson PRODUCT REVIEW Gann Natural Squares Calculator LAMBERT-GANN EDUCATORS, INC.

21:11 (98-99, 102): Product Review: Gann Natural Squares Calculator by Dennis D.

W d gann calculator