Dahlia Maarten van Gelder 1985 Nov
1 2
3 4
5 6AReverse fold in the center to
fold both ends up
6BCrease pattern
seen from bottom
7 Fold ends out via
zigzag reverse folds
8 9
10 11 Right flap to the left;
point X between flap
12 Center: left flap behind right flap.
Left end overlaps right end for 2/16.
Repeat behind; very difficult
13 Finished: top view and side view