Prototype run of 4 TeleFireTwo v1.1 by
keithp, built 2016.06.12
+
+## sn 3403-3502 ##
+
+Production run of 100 pieces of TeleMega v2.0 by
+[Advanced Circuits](http://4pcb.com), received 2016.12.16.
+
+## sn 3503-3628 ##
+
+Production run of 126 pieces of TeleMetrum v2.0b by
+[Advanced Circuits](http://4pcb.com), received 2017.02.26.
+