AbacusW
Abacus
Arithmetic ropeW
Arithmetic rope
Beevers–Lipson stripW
Beevers–Lipson strip
BlockchainW
Blockchain
C-Thru RulerW
C-Thru Ruler
CalculatorW
Calculator
Compass (drawing tool)W
Compass (drawing tool)
Counting boardW
Counting board
Counting rodsW
Counting rods
Differential analyserW
Differential analyser
French curveW
French curve
Geometry templateW
Geometry template
Graph paperW
Graph paper
IntegraphW
Integraph
Ishango boneW
Ishango bone
Mathematical instrumentW
Mathematical instrument
Mathematical tableW
Mathematical table
Mechanical calculatorW
Mechanical calculator
NomogramW
Nomogram
Oxford Set of Mathematical InstrumentsW
Oxford Set of Mathematical Instruments
ProtractorW
Protractor
Rod calculusW
Rod calculus
Sand tableW
Sand table
Shadow squareW
Shadow square
Steinhaus longimeterW
Steinhaus longimeter
StraightedgeW
Straightedge
Tally stickW
Tally stick
Tomahawk (geometry)W
Tomahawk (geometry)
YupanaW
Yupana