See also tight-not-touching.
Contributed by Stephen Coles
Contributed by Garrison Martin
Contributed by Florian Hardwig
Contributed by Herb Lubalin Study Center
Contributed by Nick Sherman
Photo(s) by Rakeng on Flickr.
Contributed by Shiva Nallaperumal
Photo(s) by Steve on Flickr.
Photo(s) by Klaus Hiltscher on Flickr.
Contributed by Rob Hudson
Contributed by André Mora
Photo(s) by Nick Sherman on Flickr.
Contributed by Indra Kupferschmid
Contributed by Malte Kaune
Contributed by Chris Purcell
Photo(s) by The National Archives UK on Flickr.
Photo(s) by brett jordan on Flickr.