Contributed by Ricardo Barquín Molero
Contributed by Lorenzo Bigatti
Contributed by Rüdiger Schlömer
Contributed by Daniel McQueen (TDF)
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Contributed by Maxime Gau
Photo(s) by Joe Clark on Flickr.
Photo(s) by altpapiersammler on Flickr.
Contributed by Roland Hörmann
Contributed by Will Miller
Contributed by Mihail Mihaylov
Photo(s) by Fritz Grögel on Flickr.
Contributed by Rodrigo Saiani
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Contributed by Tim Brown