a = Lower Bout Width
b = Upper Bout Width
c = Waist Width
d = Lower Bout Height To Waist
e = Upper Bout Height To Waist
For 12 fret guitars, heres what I learned:
..
....
..0
...
.00....
000
..
D
Ratio a : b
.1.41
.
..1.39
.
.1.35
.1.03
Ratio d : e
.1.81
...1.36.
.1.60..
.1.67
Ratio a : c...1.67
.
..1.66
..1.64
.
1.17
These ratios enabled me to determine that a sweet guitar for sale on eBay in 45 trim level is probably a copy of Martins 000 body.
This has helped me greatly hope it helps others as well.
Regards ........ Glen
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