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

Desirable RCA COSMAC CDP18S020 (Rev. 2) Evaluation Board with RCA 1800 COSMAC Micro Terminal (CDP 18S021), featuring a CDP1802 microprocessor: a one-c

Core memory unit from a ROLM militarized NOVA computer, 9.5˝ x 6.5˝ x .5˝, marked on the edge: "ROLM Corporation, Santa Clara,

Early circa 1970s high power 8-pin ballistic type print head, made in the USA by Wang Laboratories. It is unusual in that it uses solenoids to drive p

Handsome circa 1930s American carbon button broadcast microphone, measuring approximately 25˝ tall on a 7.5˝ x 7.5˝ base. The

Circa 1958–1962 Everest Z5R pinwheel mechanical calculator made in Italy, measuring approximately 13˝ x 6.5˝ x 7

Scarce Sun Hemmi Model No. 275D slide rule made in Japan, featuring 20˝ scales and a single cursor, known as a 'vector log-log slide rule.&...

Pair of Cold War–era Russian tank commander helmets, both made of padded cloth with a built-in microphone and headset. One helmet, displayed

Used during World War II by the Navy and US Marines, the TBY-4 two-way radio was famously utilized by Navajo Code Talkers to send and receive secret m

World War II–era US Army BC-611-F Radio Receiver and Transmitter, popularly known as the 'walkie talkie,' engraved with serial number ...

Original and very colorful French advertising poster for "La Raphaelle Liqueur Bonal," 45.5 x 62.5, done by G. Rosetti in 1908. Poster dep...