Posted by: hans Post Reply
03/13/2020, 03:23:46
Hi Anne,
there is a rather technical article in a Beads journal from 2005 by Lester A. Ross. As far as I understand now, the square hole beads where made from the 1917's-1920's onwards, maybe with a Danner drawing tube machine in Murano.
Modified by hans at Fri, Mar 13, 2020, 03:29:53
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