Diagonal Press was established in 2013 by American artist Tauba Auerbach. It issues publications (books, type specimens, flags, mudra, pins) in unlimited editions, where nothing is signed or numbered.
This is the Woven Hashtag pin from 2014. It's made from diecast zinc alloy and soft enamel, and has a single rubber back.
Photographed here with dust jacket sample from Morel Books, and a mesh velvet top from Margiela MM6 AW16.
'A set of lines and glyphs rendered in stroke treatments defined by the Diagonal Press typefaces, bindings structures and evolving topological symbology.'