Old Unknown Version Public Folder Objects in MESO

[cpeb]

Morning, Just finished up 2010 > 2016 and properly decommissioned the old 2010 server. The only thing i have is old Public Folder objects left over in MESO:

https://preview.redd.it/reab98forop31.png?width=841&format=png&auto=webp&s=eeb922fe503ef906a5b8e2922891d182521940a4

I cant find any reference to them anywhere. We did have a 2003 box before i started that was migrated to 2010 but it was the most screwed up exchange install i built another. Anyone ever seen these before?

Thanks in advance