Bidspirit auction | A Sinclair Cambridge Memory Electronic

A Sinclair Cambridge Memory Electronic Pocket Calculator - A vintage Sinclair Cambridge Memory electronic pocket calculator, manufactured by Sinclair Instrument Ltd. in the United Kingdom, dating from circa 1974 to 1975. The device is housed within an integrated black textured plastic case featuring a flip-top protective cover. The front bezel is printed with the identification sinclair Cambridge Memory in white text. The unit incorporates a display window with a dark blue filter for a red light-emitting diode readout. The keyboard consists of nineteen rectangular plastic keys in blue and off-white tones. The upper function buttons are labelled C CE and RM CM. The lower section includes a standard numeric keypad from 0 to 9, a decimal point, and arithmetic operator keys for division, multiplication, subtraction, addition, and equals.