This vintage American Express card size calculator from the 1970s is a true gem for collectors of vintage electronics. Made in Hong Kong, this calculator is a perfect example of the high-quality craftsmanship of that era. Its compact size makes it a great addition to any vintage electronics collection or as a unique conversation starter on a desk or shelf.

With its vintage charm and classic design, this calculator is sure to impress. Its functionality may be limited compared to modern calculators, but its appeal lies in its retro style and nostalgic feel. Whether you are a collector or just someone who appreciates vintage electronics, this American Express calculator is a must-have.