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Spiral
Folds
Definition:
A piece of paper folded in spiral
folds has two or more parallel folds that fold in
on each other. It may fold in from the left or right. To allow
proper nesting of panels that fold in, inside panels are usually
1/32" to 1/8" smaller than outer panels with the inside end
panel being the smallest.
Also
Known As: roll fold | barrel fold
Examples:
 Seen
from above, the folds spiral inward.
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