Tina's Pocket Watch Slide Rules

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H C Calculigraphe. Made in France by Henri Chatelain. Sourced from Bulgaria.

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 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)

Halden Calculex

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

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