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A disk cipher device of the Jefferson type from the 2nd quarter of the 19th century in the National Cryptologic Museum. The Jefferson disk, also called the Bazeries cylinder or wheel cypher, [1] was a cipher system commonly attributed to Thomas Jefferson that uses a set of wheels or disks, each with letters of the alphabet arranged around their edge in an order, which is different for each ...
The (Hagelin) CD-57 was a portable, mechanical cipher machine manufactured by Crypto AG, first produced in 1957. [1] It was derived from the earlier CD-55, and was designed to be compatible with the larger C-52 machines. Compact, the CD-57 measured merely 5 1/8in × 3 1/8in × 1 1/2in (13 × 8 × 3.8 cm) and weighed 1.5 pounds (680 gr).
Curb feeler mounted behind the front wheel of a 1950s Rambler American Curb feeler on a 1973 VAZ-2103 Ziguli (left) Curb feelers or curb finders are springs or wires installed on a vehicle that act as "whiskers" to alert drivers when they are at the right distance from the curb while parking. The devices are fitted low on the body, close to the ...
Instead of 1 and 2 though, 1 and 8 were used since these numerals look the same upside down (as things often are on a cipher disk) as they do right side up. [2] Cipher disks would also add additional symbols for commonly used combinations of letters like "ing", "tion", and "ed".
A wheel cipher being used to encode the phrase "ATTACK AT DAWN." One possible ciphertext is "CMWD SMXX KEIL." The principle upon which the M-94/CSP-488 is based was first invented by Thomas Jefferson in 1795 in his "wheel cypher" but did not become well known, and was independently invented by Etienne Bazeries a century later.
There is usually a fee associated with selling a vehicle on eBay. [14] Some buyers prefer to look for local car sellers on eBay, within a certain radius so that they can go and do a manual inspection of the vehicle. [15] There are several cases of scams associated with popular online auctions. [16]
The German Lorenz SZ 42 cipher machine contained 12 pinwheels, with a total of 501 pins. In cryptography, a pinwheel was a device for producing a short pseudorandom sequence of bits (determined by the machine's initial settings), as a component in a cipher machine. A pinwheel consisted of a rotating wheel with a certain number of positions on ...
These "spinner-wheel covers" were available on standard as well as featured on custom cars, and lowriders quickly adapted them for their vehicles. [ 7 ] During the early-1960s, the simulated wire wheel covers returned, but with a new look designed to emphasize sportiness with their radiating spokes and center "spinner caps."