Archive of Collections



Details and Image



TypeModel No.MakerCountryConstruction
Material
DateScale LengthArea of Use
Disk
#63 Coil Weight & Length Calculator
Perrygraf for Littell Machine CompanyUSA
Cardstock
est. 1958Dia. = 12.9 cmMachine Industry

Notes: Used in the sheet steel industry to determine coil weights and lengths with various constant tables on the reverse side


Image 1




Image 2