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Golden Mean Calipers

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Callipers for finding the Golden Ratio.

The Golden Mean – one of the primary magic numbers.

Its name is Phi
Its number is 1.61803399
Its symbol is Φ

The Golden Mean is the link between the nautilis shell, the sunflower and the pentagram. Phi is the root-note of the harmony that holds the universe together,

The root-note of the harmony that connects the iPhone to the Acropolis.

More information on the Internet.


These calipers are not mass-produced.

They’re lovingly hand-crafted by me… in my garage hammering the little brass rivets into place with a proper hammer, just like the proper Ancient Greeks used to do.

The odd bit of roughness is (therefore) a stamp of authenticity. Of personality :)


There are three sizes, they are

1) Big : 180 mm (measures 35 mm to 320 mm) : $75.00

2) Little : 87 mm (measures 23 mm to 150 mm) : $35.00

3) Littler : 62 mm (measures 20 mm to 110 mm) : $30.00

I can make other sizes if requested.

Golden Mean Calipers


  • Material: brushed stainless steel and brass rivets
  • Ships worldwide from New Zealand
  • Feedback: 41 reviews
  • Favorited by: 10 people

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