Step back in time with this Kosmos 2 Biorhythm Calculator, a fascinating relic of vintage technology. While it does not power on, it remains an iconic display piece for collectors of rare calculators and retro gadgets. Features Details: ? Era: Likely from the late 1970s to early 1980s, when biorhythm calculators were a tech novelty. ? Functions: Originally designed to calculate biorhythms, mapping cycles of physical, emotional, and intellectual energy using graphing capabilities. ? Aesthetic Appeal: A striking metal panel with classic sine wave graphics and a compact design. ? Keys Build: Sturdy, metal-trimmed keys with dedicated biorhythm buttons (BIO, B1, B2) alongside standard calculator functions. ? Back Panel Chart: Provides a reference for critical, mini-critical, and cycle tracking, adding to its historical appeal. ? Includes Original Case: A black leather-style slipcase (with some wear), completing the authentic retro look. Though it no longer functions, this piece is a must-have for collectors of rare calculators, vintage tech displays, or anyone fascinated by quirky 20th-century gadgets. Whether you?re an enthusiast of obsolete electronics or just love conversation-starting memorabilia, this is a perfect addition to any collection. Sold as-is, non-working, for display or parts.