Archive of Collections



Details and Image



TypeModel No.MakerCountryConstruction
Material
DateScale LengthArea of Use
Disk
630 (v2)
AristoGermany
Plastic
est 1973Dia. = 22 cmChemistry

Notes: 1) Large circular slide rule with elements by atomic weight 3) Last appeared in the 1970 Aristo catalog


Image 1