Estimating wire gauge for filigree
I am trying to calculate the original round wire gauge used to make
the heavier flat wire that encloses and became the frame on a peice
of Icelandic filigree work. The flat wire has rounded edges so it
definately was rolled from round wire stock. The frame wire is
roughly 0.68 mm thick (28/1000") and 2.06 mm wide (83/1000").
How would one calculate the original round gauge required?