Educational Instruments Inc. Corona I

---

Country of manufacture: USA,            Date of manufacture: ____
Diameter: 17.8 cm,          Thickness: 0.8 cm,           Weight: 112.0 gms
Materials: All plastic, 2 sided, single cursor
Scales: 9
Front: Outer ring: C, Inner disk: D, R (=DI), A, K, L, S, T, ST
Gauge Marks: [      ]
Back: Conversion factors, Series expansions, Integrals (antiderivatives), Differentials, Algrbraic formulae, Trig Tables, Mensuration formulae, Analytical geometry formulae
Condition: C2 (Mint but without case or manual)
Came with: clear plastic bag

---

   >

---