Iwa kalle Folienrechner




Length 15 cm
Number of scales 8
Country of origin Germany
Country of manufacturing Germany
Year of manufacturing  
Status of the slide rule Normal signs of use
Material of the slide rule Plastic
Type of cursor Clear plastic
Status of the box Normal signs of use: light blue plastic
Status of the manual Is part of the sleeve
Collection number 208
Further comments Kalle was for decades the major German manufacturer of diazo media. This slide rule could be used for various conversions with rolls of foils and films.


 Last updated: 04-09-2009