The Complete Rarities Gallery
Prompt Calculateur  | Quick Multiplikator  |  |  |  |
 |  |  | Pocket Watch S.R.  | WIRELESS SLIDE RULE  |
PIC # 172E / PC 17 Electrical Engineer's SR  |  | S-M No. 1155  | ARC Engineer's Slide Rule Model 103  | ARC Extended Scale Semi-Circular Slide Rule  |
 | No. 1157  | Improved Long Scale  | Spiral Slide Rules  | GEODAT  |
 | Artillery Slide Rule  |  | "The Macmillan Table Slide Rule"  | Complete Machinist Lathe Slide Rule  |
Gunters Rule  | Hatter's Slide Rule  | System Billeter - 16 m  | System Billeter - 8 m  | Rechenwalze System 20-m  |
 | Rechenwalze - 4 m  | (BRE) Model AG5  | Model 510  | Model 560  |
 |  | Slide Rule  | Projection Rule  |  |
Carpenter’s Slide Rule  | by Brady & Martin, England  |  | prototype 30 cm circular slide rule  | Cercle a Calculs  |
Discharge Computer and Pump Computer, 1897  | Discharge Computer  | by Gurley  | by Gurley  |  |
Model AA  | Model A  | Model AA with Magnifier  |  | 12.5-cm Pocket Slide Rule with chisel cursor  |
Chemical Slide Rule  | Model #1 with chisel cursor  | Sylvania No 400F  | Code Maker Slide Rule  |  |
Model 1762B  |  | Concrete Calculator  |  | Pythagoras-Rechentafel  |
Universelle Deposée  | Proportional Divider  | 4.5-inch English Sector  |  |  |
w decimal indicator  | System Rohrberg  | System Baur  | System Dr. Hohenner  | System Pickworth  |
 |  | SR108 & MD7  | Correction Computer  |  |
 | ................. Formula Finder  | Long Scale Calculator  | Long Scale Calculator  |  |
Paper & Board Calculator  |  | Scientific Publishing Co,  | Calculator  | Cylindrical Slide Rule  |
 | Early 1880s Stanley  | Palmer's Computing Scale  | Photographic Slide Rule  | Calculator type II  |
Type I Version II  | Type 1, Version 1  | NEPERLOG HYPERBOLIC  | 698 Electonicien  | 25 cm Règle à Calculer  |
Règles à Calculer  | Tavernier & Vinay Slide Rule  |  |  | Aston and Mander, London  |
Hydraulic Slide Rule by Dennert & Pape  |  | "Two stick" Slide Rule  |  | Chemical Slide Rule for Portland Cement  |
40 cm Scales Folded 6x  | With Decimal Keeping Cursor  | ISRG Commemorative - 2005  | System Ing. E. W. Hiltpold  | Slide Rule Chart  |
No. 458  | Steam Valve Adjustment  |  |  | System Wern  |
 |  | For T-99 Gun  | Slide Rule  | Rafter Framer S.R. Model 1  |
Stadia Slide Rule  | Goodchild Slide Rule with Chart  |  |  | Slide Rule Type I  |
 |  | With Column Cursor, 1915  |  | Crane Sewer Rule  |
Cooke Radio SR  |  | Mannheim  |  | Mannheim  |
Sperry Calculator  | Pocket Calculator  |  | Without Label  |  |
 |  | Favorite  | with Column Cursor  |  |
Cox Duplex  | “Radio” Slide Rule  | 25 cm Scales, Column Cursor  | With a Column Cursor  | Merchants’ Slide Rule  |
Merchants’ Slide Rule  | Merchants’ Slide Rule  | Mystery 2O Inch  | Power Trig  | Crane Sewer Rule  |
Roylance Electrical Slide Rule  | Power Computing Rule  | Kissam Stadia S.R.  | Kurtz Psychrometric Slide Rule  | 4031 or 4032  |
Chemical Slide Rule  | Decimal Keeping Slide Rule Type II Unknown Model  | Nordell Sewer Slide Rule  | Steel Slide Rule  |  |
 | Calculigraphe Model 4022  |  | 681130  |  |
Surveyors Duplex  | Power Computing  | American Optical Dr. Prince Refracting Rule  | Brick-O-Meter  | Graphical Firing Table M16  |
Student Slide Rule Model 4058 Very Early Model  | With Very Rare Decimal Keeper Cursor  | Reymond Leather Calculator  | Wm. Cox Patent 1891  | Classroom Model  |
8" Scales, Column Cursor  |  | Loaner Slide Rule  |  |  |
Bule Paper #1540A  | Models 1 & 2  | Lumber Calculator  | Slide Rule (ETS)  | 17-cm Military Sector  |
 | by R. Waddington  | by Elliott Brothers  | by R. Waddington  | by W. Waddington  |
 |  | Pencil Slide Rule  | Pencil Slide Rule  |  |
 | Cercle a Calcul, Type 2b  | American Blue Print Co  | Keuffel & Esser 4108  | Pickett Model 14  |
Type 2, Mid Variant  | Type 3, Late Variant  | StudentMade Slide Rule  |  |  |
 |  | Model 27 Slide  | 3.75 m  |  |
System MOISSON Nr. 0374  |  | Cash Type Carbic, Ltd.  | Model K Carbic, Ltd.  | Model M Carbic Ltd.  |
Model N Carbic Ltd.  | Model L, Versions 1, 2 ,3 Carbic Ltd.  | Model A  |  | Proportional Slide Rule  |
 |  | “Easterly” Rafter Framer S.R.  | U.S. Air Force Photo S.R.  | Vector Model 3  |
Model 1  | Log Log Vector Model 2  | Hyperbolic Model 4  |  |  |
 |  |  |  |  |
Barrel Magnifying Cursor  | Barrel Magnifying Cursor  |  | Slide Rule  | With @SUN@ HEMMI JAPAN On Face of Top Stator  |
 |  | Slide Rule No Number  | No. 1439 by Dr. L.Nones  |  |
Improved Milk Scale Baird & Tatlock, London  |  | Precision Computer Type I  | Precision Computer Type II  | Reduktions-Rechenstab RS 10  |
 | System Iorish  |  | Slide Rule NR-1  |  |
 | NL-7  | System Hasselblatt  | Glavtochmash Experimental Plant Loglog Slide Rule  | Slide Rule  |
Zwolfmeter-Rechenschieber  | Model 1610 D  |  |  |  |
by C-Thru Ruler Company  | Whythe Complex Slide Rule  | With Decimal Keeper  |  | With decimal keeper cursor  |
 | Machinist's Slide Rule  |  | Règle à Calculer with Chisel Cursor  | Butterfat Slide Rule  |
K&E Slide Rule  | Pocket Slide Rule with Magnifying Cursor  | de Goulier  | Instrument Type I / K&E  |  |
Calculator -- Mid Size  | Calculator -- 3 Sizes  | Calculator -- Large Size  | Calculator -- Small Size  |  |
 |  |  | Slide Rule - Types 1 & 2  | Timber Slide Rule  |
Keuffel & Esser 4105  | A Sector  |  | for Rule Work  |