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TCoCD Pictures Mathematical Instruments Riefler Proportional Dividers

Riefler Proportional Dividers
Riefler proportional dividers (click for larger image, 42)
front side (click for larger image, 42)

Riefler proportional dividers (click for larger image, 36)
back side (click for larger image, 36)

Riefler proportional dividers (click for larger image, 70)
detail (click for larger image, 70)

manufacturing date  
material Alpaka (German Silver)
with steel tips
size:   length
  weight
175 mm
80 g
TCoCD Pictures Mathematical Instruments Riefler Proportional Dividers

back to the main page  Mathematical Instruments  previous instrument: Proebster Proportional Dividers  The Collection of Calculating Devices  next instrument: Proportional dividers 
Deutsche Version
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