H C Calculigraphe. Made in France by Henri Chatelain. Sourced from Bulgaria. This example is 16mm thick.
Fowler's Calculator, there is what may be the Serial Number 8119 in the centre of the reverse dial (Type 2FG1 in Richard Blankenhorn and Robert de Cesaris' Catalogue Raisonne). This has the same scale sets as the Type H.
Fowler's Type B Serial No. 2738 (Type 3MT1a in Richard Blankenhorn and Robert de Cesaris' Catalogue Raisonne). The outer scale on this is a normal decimal scale however the inner scale has base 16 sub-divisions. For pounds and ounces perhaps.
Fowler's Long Scale Calculator (Type 2MG2 in Richard Blankenhorn and Robert de Cesaris' Catalogue Raisonne)
Fowler's Magnum Long Scale Calculator (Type 4MG1 in Richard Blankenhorn and Robert de Cesaris' Catalogue Raisonne)
Fowler's Jubilee Magnum Extra Long Scale Calculator (Type 4MG2 in Richard Blankenhorn and Robert de Cesaris' Catalogue Raisonne)
Fowler's Textile Type E1 (Most Similar to Type 2CT2b in Richard Blankenhorn and Robert de Cesaris' Catalogue Raisonne except that the three scales on the back are Weft, Cloths and Two in a Dent Reeds Plains not Weft, Looms and Reeds as in the Catalogue). The case is a single piece case on which the serial number 6043 is stamped.
Fowler's Magnum Textile Calculator (Type 4MT2b in Richard Blankenhorn and Robert de Cesaris' Catalogue Raisonne)
Fowler's Universal (Type 3MG1 in Richard Blankenhorn and Robert de Cesaris' Catalogue Raisonne)
Fowler's Twelve-Ten (Type 3MG2 in Richard Blankenhorn and Robert de Cesaris' Catalogue Raisonne)
Fowler's Twelve-Ten, disassembled. (Type 3MG2 in Richard Blankenhorn and Robert de Cesaris' Catalogue Raisonne)
Fowler's Junior Type 4MJRG1 in Richard Blankenhorn and Robert de Cesaris' Catalogue Raisonne). This is a circular rather than pocket-watch slide rule but it is referenced here to keep it with the rest of the Fowlers.
Halden Calculex
Manloves, London Boucher Calculator. Manloves was formerly Manlove, Alliott and Fryer based in Nottingham and Rouen. The scale on the rear face is moved using the large central winder, the pointer is moved using the small winder set at an angle. This allows the angle representing a multiplier to be set. The scale on the front face, the face bearing Manloves name, does not move; the pointer on this face should directly oppose that on the rear face allowing cubes to be transferred.
Russian Sunrise Krugovaya Logarifmicheskaya Lineika KL1. The Instruction Leaflet is stamped 23 September 1966
Russian Krugovaya Logarifmicheskaya Lineika KL1. The Instruction Leaflet is stamped 5 August 1967. This one is decorated to Commemorate the 50th year of the Soviet Revolution.
Wynne's Infallible Exposure Meter
