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CASIO: FX550A
Pocket
_
10-DIGIT, SCIENTIFIC CALCULATOR, fx-550
(1981)
(Courtesy of: CALCUSEUM (Serge DEVIDTS))
fx550A (fx-550A)
fx-550A
Link-1: CASIO CALCULATOR COLLECTORS, Link-2: MY CALCULATORS DATABASE, Link-3: LE RAYON DES CALCULATRICES