Nagel Anomaloscope Model 1 (c. 1907) On Display:Nagel Anomaloscope Model 1 Acquired from: eBay

Acquired from: eBay

this clever "decision-tree" machine became a massive educational hit

🥇 First Laptop to Feature a Built-In "Bubble Jet" Printer

this classic model was phased out by 1940 to make way for the newer military radios that would help monitor Allied communications during the conflict

Nagel Anomaloscope Model 1 (c. 1907) On Display:Nagel Anomaloscope Model 1 Acquired from: eBayThe Nagel Anomaloscope Model 1 is considered the absolute "gold standard" medical instrument used by doctors to precisely diagnose and classify red green color blindness. Invented by a German scientist in 1907, the device was developed to provide a rigorous, foolproof scientific evaluation that was far more accurate than simple printed color cards. When a person looks into the viewing eyepiece, they see a circular screen split perfectly into two