+## sn 17-21 ##
+
+Full load of TeleMini v0.1 PCBs on 2011.03.07. Minor variations due to
+parts availability, as follows:
+
+* sn 17-18 have TXC oscillators, sn 19-21 have Abracom
+* sn 21 is missing the dual LED
+
+## sn 25-26 ##
+
+Full load of TeleTerra v0.1 PCBs on 2010.10.31
+
+## sn 27-31 ##
+
+Full load of TeleNano v0.1 PCBs on 201103.09. sn 27 has TXC oscillator, all
+others have Abracom, no other significant variations.
+
+## sn 32-33 ##
+
+Full load of TeleMini v0.2 PCBs on 2011.05.04.
+
+## sn 34-36 ##
+
+Full load of TeleScience v0.1 PCBs on 2011.05.05.
+
+## sn 37-38 ##
+
+Full load of TeleBT v0.1 PCBs on 2011.05.06.
+
+## sn 39-42 ##
+
+Full load of TelePyro v0.1 PCBs on 2011.09.20, except only sn 39 and 40
+have magnetic sensors since I only have two samples of the now-obsolete part.
+
+## sn 43-45 ##
+
+Full load of TeleScience v0.1 PCBs on 2011.09.22.
+
+## sn 46-48 ##
+
+Full load of TeleTerra v0.2 PCBs on 2011.10.23.
+
+## sn 49-50 ##
+
+Full load of TeleShield v0.1 PCBs on 2012.01.03, using 3.15V reset controller
+and the less-good crystals.
+