Olympia RAE 4/15 Desktop Calculator
Olympia's first electronic calculator. All-transistorized construction with
magnetic core memory for register storage. 15-digit Nixie tube display.
Single memory register. Four function, with automatic decimal point
placement. Incandescent power, negative number, and overflow indicators.
Two styles; the earlier machines have a slide-type power switch located
on the keyboard panel, and square status indicators (as shown), and
later-design machines have round status indicators, and push-on/push-off
power switch located on the same panel as the status indicators. Either
style is wanted.