Contributed by Stephen Coles
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Photo(s) by Birmingham Phil on Flickr.
Contributed by Sergiy Tkachenko
Contributed by Matthijs Sluiter
Photo(s) by Bart Solenthaler on Flickr.
Contributed by Art Grootfontein
Contributed by JAF
Photo(s) by exaquint on Flickr.
Photo(s) by Cardboard America Archives on Flickr.
Contributed by Andreas Seidel
Photo(s) by Michael Studt on Flickr.
Contributed by Maria Paganopoulou
Photo(s) by Steve on Flickr.
Photo(s) by cardboardamerica@gmail.com Jordan Smith on Flickr.