french envelope

for years, i have admired french mail art. it's really very nice. here is a good example. i need to buckle down and spend more time on my envelopes. i have always loved the whatchamacallit spiral. i can't think of the name. it is based on the Fibonacci numbers.

here is the blog where i found this image

http://talent.paperblog.fr/4239965/art-postal-deux-projets-en-cours/