Like B606b, but new date (2 DE MAYO DE 2012), new printer imprint (Joh. Enschedé), and different serial number font.
Courtesy of Hartmut Fraunhoffer (http://www.banknoten.de).
2014-10-01
Guatemala new printer/date (02.05.2012) 10-quetzal note (B606c) confirmed
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