Alro 200R


Box open

In perspective

Metal box

Cardboard Box

Diameter 12 cm
Number of scales 9
Country of origin Netherlands
Country of manufacturing Netherlands
Year of manufacturing 40-ies or 50-ies
Status of the slide rule Mint
Material of the slide rule Metal, plastic and paper
Type of cursor Clear plastic
Status of the box Near mint
Type of box Carton
Status of the manual Mint (see here)
Collection number Sold again
Further comments Alro was a small Dutch manufacturer of circular slide rules.




 Last updated: 21-02-2010