This week Marielle is here from Glasgow to help us bond ears and glue prisms and magnet flag mounts to the ITM and ETM PENs.  We have 4 of each PEN types (although they are physically and functionally the same) in house.   Note:  The serial numbers transcribed here are for PENs only, although they are labeled the same as Test Masses.  This does not imply any matching of specific PENs to specific TMs, just an unfortunate naming convention of these PENs early on.  Marielle hopes to have 4 PENs with ears by the end of the week.  Having a bit of a late start and a short commissioning phase in the LSB bonding lab this week, yesterday ITM04 (which had ears bonded last Sept during Marielle's last trip) had sapphire prisms glued to it.  As well Gerardo and Marielle bonded the first ear to ITM01.  Today, we glued the magnet flag mounts and 416 SST disc insert to ITM04, and are working on bonding the second ear to ITM01.