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The enigmatic Spirule |
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Magnetic core memory |
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Gravet Lenoir
slide rule |
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A Mathematical Robot |
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Flight computer |
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Not a Toy!... |
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A curious hybrid |
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Correntator slide adder |
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Odhner Pinwheel Calculator |
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Ivory Sector |
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Hard Fonts |
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Mahogany
and Glass |
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The first PDA |
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Computer with a dial |
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Fowler's circular slide rule |
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Chenevier's Memento |
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Software by
the yard |
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A Victorian "Calculator" |
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A Bill full of holes |
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Enter the Altair! |
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Homemade hydrological rule |
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The incredible
Curta |
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ALKU glass
slide rule |
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Iron Felix calculator |
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El Calculador! |
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Stephens' Supremathic |
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Psychrometric slide rule |
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Chesterman's
Cattle Gauge |
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Thacher's monster slide rule |
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Joe Gerber's pajamas |
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The Bare Bones
Hemmi No. 22 |
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Beautiful Digits |
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Blue Velvet |
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Just a couple
of relays |
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The Xeroxed
calculator |
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Black Gem |
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Locke's adder |
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Farmar's profit calculator |
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Kaufmann's
Posographe |
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Hand wired memory! |
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Piercing the unknown |
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Ken+Add adder |
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Michaelis's calculator |
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Biorhythmic calculators |
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Webb's Adder |
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Gunter's rule |
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Krüger's Rechen-Federkasten |
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Leib Stern's
Slide rule |
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An unusual
form factor |
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How the sliderule got its Cursor |
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Kally's water
flow calculator |
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A lovely gauging
slide rule |
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The Small calculator |
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Five little
Intel Chips |
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Three pencil
slide rules |
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Wynne-Roberts’ pipes calculator |
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Cornell's F.24 aerial calculator |
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A slide rule
with a Wow! |
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Lt. Brenske's
Marsch-Zirkel |
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Lafay's Hélice
a Calcul |
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Factorization slide rule |
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Pretty as
a picture! |
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The Controller sliderule family |
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Data Scaler proportional rule |
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J.Zedak’s wooden
slide rule |
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Lalanne's glass
slide rule |
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Martin's huge table |
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Genaille-Lucas financial rods |
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Slide rules for a new century |
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Sabatini’s calculator |
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Torsion wire
delay line |
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Ross Precision Computer |
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Bloch's Schnellrechner |
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The Pose-Marre pen slide rule |
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The Jeffers calculator |
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R.H. Smith's calculator |
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Hoffman's calculator |
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Chairman Mao’s guidance |
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The calculation
of MADness |
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Numeri Mundum Regunt |
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Troncet’s other calculator |
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The Sinclair Sovereign |
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The weird Logarex Typ-01 |
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The Ifach adder |
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The Watkins exposure meter |
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Sbernadori's aerial photo slide rule |
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Meet E.W. Fritchley' |
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