Sinclair Scientific Vintage Print Ad Scientific Calculator 1974 For Sale

This original 1974 print advertisement showcases the Sinclair Scientific, the pioneering pocket scientific calculator known for its affordability and advanced functions. Measuring approximately 4 3/8\" high by 2\" wide and 11/16\" thick, this ad highlights the Sinclair Scientific\'s innovative features, including log and anti-log, trigonometric functions, automatic squaring, and scientific notation capability. The calculator\'s design is compact and lightweight at just 3 3/4 ounces, making it the world\'s thinnest and lightest scientific calculator at its time.This print ad measures approx. 8 x 11.5 inches.The ad details Sinclair\'s technological breakthroughs such as the single integrated circuit engineered in Britain and the exclusive four \"triple-action\" function keys for efficient calculations. Promoting its service and warranty, this collectible print ad also features an order form with Sinclair Radionics\' New York address, emphasizing its historical significance in calculator miniaturization. A must-have piece for collectors of vintage technology advertising and Sinclair memorabilia.