How old is your oldest robot

[Jalerre]

We have a bot from 2011. However it no longer has the mechanisms on it. It has been repurposed to launch t-shirts. It still has the original chassis including the frame, wheels, gearboxes, and motors. However, everything else has changed. We did have a 2012 chassis for testing purposes but it has been disassembled. The 2013 robot from the team that our team spawned from still exists and is in working order but is under the ownership of the school that our old team was apart of. Our 2014 bot is still assembled but we have taken some electronics from it so it's not functional at the moment. It would be easy to repair, however. So I guess our oldest functional robot is from 2015.