A wooden block about 9 by 12 inches, 6 inches
thick at the head and 5 at the foot, on which
headbanders in library binderies used to lay their
zinc boards with dampened headbands, prior to
attaching them to the text blocks. (256 ).
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Timestamp: Saturday, 19-Nov-2011 13:18:39 PST
Retrieved: Wednesday, 23-May-2018 16:24:15 GMT