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![File:Vintage Casio Mini Electronic Pocket Calculator, Model CM-605, 6 Digit Bue VFD, Made in Japan, Circa 1974 (11972293654).jpg - Wikimedia Commons File:Vintage Casio Mini Electronic Pocket Calculator, Model CM-605, 6 Digit Bue VFD, Made in Japan, Circa 1974 (11972293654).jpg - Wikimedia Commons](https://upload.wikimedia.org/wikipedia/commons/thumb/7/76/Vintage_Casio_Mini_Electronic_Pocket_Calculator%2C_Model_CM-605%2C_6_Digit_Bue_VFD%2C_Made_in_Japan%2C_Circa_1974_%2811972293654%29.jpg/2560px-Vintage_Casio_Mini_Electronic_Pocket_Calculator%2C_Model_CM-605%2C_6_Digit_Bue_VFD%2C_Made_in_Japan%2C_Circa_1974_%2811972293654%29.jpg)
File:Vintage Casio Mini Electronic Pocket Calculator, Model CM-605, 6 Digit Bue VFD, Made in Japan, Circa 1974 (11972293654).jpg - Wikimedia Commons
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![File:Vintage Casio Pocket-Mini (aka P811) LED Handheld Electronic Calculator, Made in Japan, Circa 1976 (8714450871).jpg - Wikimedia Commons File:Vintage Casio Pocket-Mini (aka P811) LED Handheld Electronic Calculator, Made in Japan, Circa 1976 (8714450871).jpg - Wikimedia Commons](https://upload.wikimedia.org/wikipedia/commons/7/71/Vintage_Casio_Pocket-Mini_%28aka_P811%29_LED_Handheld_Electronic_Calculator%2C_Made_in_Japan%2C_Circa_1976_%288714450871%29.jpg)