Stadia Match Output

Number:40a

Maker: Graphoplex 670 Geo-Polytechnique
PHOTO

Length: 30 cm

Gauge Marks: π p' p"

Scales Front: T sec-1 √(1 + φ²) AI A = B √(1-y²) L K CF C = D DI ST S

Scales Back: = B 1-√(1-y²) √(1+φ^s)-1 sin x cos cos² & sin x cos =

Info: Gonzalo Martin Collection