Slide Rule

Cylindrical slide rule by Otis King's Pocket Calcultor Patent N. 183723 Scale 423 from the 1930s, chromed brass, in its original cardboard box, complete with instructions.

Washington logarithmic circular slide rule model H 39 n. 298 of the thirties, Italian patent n. 1680, in its original octagonal box.

Washington logarithmic circular slide rule model G 29 Italian Patent n. 236298 Series G No. 813 from the thirties, complete with instruction booklet for use.

Pickett was a popular favorite among American slide rule users. They featured rules for a variety of applications along with teaching and student rules.

Fowler Calculators Ltd was a manufacturer of slide rules and other scientific and mathematical instruments, based in Manchester, England and founded in 1898 by William Henry Fowler.

The company manufactured engineering supplies such as graph paper and slide rules and upheld abnormally progressive labor policies for the time period.

Dietzgen manufactured the first American slide rule in 1885. In 1893, Eugene Dietzgen Drafting Company began manufacturing drawing boards, T-squares, surveying instruments, and othe...

A height measuring stand from France, circa 1900. A wooden rule with a sliding handle stands upright upon a simple wooden platform.

"Giant" Vintage Slide Rule by Pickett "Pickett All-American Quality Slide Rules".

This is a vintage pocket slide rule. An English, brass scientific measuring instrument, dating to the early 20th century, circa 1930.

This kind of slide-rule was the most successful one; it was equivalent to 8 times the length of a rectangular slide-rule.

A dekorative appr. 120-year-old, large, wall-mounted round „Multimeter“ analog slide rule calculator. Dated around 1900, made in Germany.

A cased 1920s Fuller's cylindrical slide rule calculator Model 1, dated 1927. By W F Stanley of London.

Great graphic over scale slide rule model, generally used as display, or a teaching aid.

The slide rule features several scales in numeral and decimal form in a concentric circular pattern.

Limited" on 5/2/59 Patented in 1878, the fuller calculator was the most advanced calculating tool of its time, with its innovative cylindrical design allowing it the same calculat...

Wonderful 1940's "Versatrig" school room teaching aid. This double sided slide rule would be a great wall piece for an engineer or architect.

Midcentury oversized slide rule. Used as a teaching aid. Would be fabulous for a loft or an architects office!

Large wooden slide rule made by the KEUFFEL & ESSER COMPANY in New York, patented on J.une 5, 1900.

Originally used as a teaching aid, this 7 foot slide rule would look amazing displayed as a work of art in a loft, lobby or retail environment.

Slide rule handmade oversize for teacher demonstration in the classroom.

an antique monumental slide rule store display by Kueffel & Esser. Well know for their drafting tables and mathemetical instruments, this was a store display from the early 20th cent...

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Painted sheet aluminum in the form of a large-scale 'dead reckoning' wheel, presumably used as a classroom demonstrator. These are the slides rules used by pilots for preparing a fl...

We have other topics as well including, cars, planes, trains, guns, $100 dollar bills, slide rules, other dog breeds, etc. They are priced at $350 a pair which includes a gift box an...

A large two-sided painted wood, metal and acrylic slide rule trade sign, advertising Pickett Quality Slide Rules from the 1970s.