Came across the Golden Mean gauge while researching the Fibonacci
Sequence and Golden Ratio relationship (for my jewelry design).
http://www.goldenmeangauge.co.uk/golden.htm Does anyone use it on
their day to day operation and if so, how? Also, do you have a less
expensive source here in the US? The aforementioned website in the UK
sells it for roughly $90 US (too rich for my blood