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Calfskin treated with chromium salts and having square markings on the grain.
[After Joseph Box, a 19th-century London bootmaker.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
(Tanning) black calfskin leather, tanned with chromium salts, having a pattern of fine creases formed by boarding
[C20: named after Joseph Box, London shoemaker]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014