Science, Technology, Space Exploration & Meteorites

Circa 1950s Czech RZ-301 portable radio direction finder, codenamed 'POSPISIL,' designed to locate clandestine radio transmissions. With thi...

Original World War II–era rotor from a German Enigma machine, dug from the ground in a WWII battlefield. This is Enigma rotor no. V with a se

World War II–era Type 31/1 'Sweetheart' clandestine radio receiver, developed for use by the British Special Operations Executive (SOE...

Historic battlefield-found, relic three-rotor Enigma I machine recovered from the ground outside the village of Sülstorf, Germany, approximate

Scarce original Cold War–era Russian M-125 cipher machine, codenamed 'Fialka,' in its original case with separate original power suppl...

Complete and original wartime Swiss NEMA Model 45 cipher machine, serial no. TD-521, developed by Zellweger AG in Uster, Switzerland, during World War

Desirable World War II–era American M-209-A mechanical pin-and-lug cipher machine, measuring 7.25˝ x 5.25˝ x 3.25˝, i

Circa early 1970s gold-clad 24-pin Advanced Micro Devices (AMD) SN54181J, 9341DM, 7418M 4 bit Arithmetic Logic Chip (ALU). Some top engineers left Fai

Rare Fujitsu 128K Bubble Memory Cartridge, measuring 1.75˝ x 2.25˝ x .75˝, with the label printed, "FBM-C128GK," annotated ...

Core memory unit from a Norden militarized PDP-11 series computer, 9˝ x 6˝ x 1.25˝, with Norden Systems manufacturer's label o