Yesterday, I got some series 2006 FJ block UNCs and realized that they were printed in DC per Derek's site (F 5760 0001 I to F 1920 0000 K ) along with parts of FI and FK as well. The rest of the F (Atlanta Fed) blocks were printed in FW.
Does anyone know why some of these were printed in DC?

Thanks
A few other fed district runs had this scenario as well.
http://www.uspapermoney.info/serials/f2006_s.htmlPeace