Faber-Castell 67/34 Hämognost



Front without slide


Length 15 cm
Number of scales 5
Country of origin Germany
Country of manufacturing Germany
Year of manufacturing 1954
Status of the slide rule Near mint
Material of the slide rule Plastic
Type of cursor Clear plastic
Status of the box Near mint
Type of box  
Status of the manual None
Collection number 122
Further comments This is an extremely rare specimen. It is harldy ever offered on the market.

The exact application is not known to me, but Erythrozyten are the German/Latin name for red blood cells. The slide rule was most likely used for a medical sedimentation test for red blood cells.



 Last updated: 04-09-2009