Rubbing sound fromTechnics SP 15 platter

I just salvaged two Technics SP 15 decks with AT tonearms from a closed radio station. While both decks spin, each makes a rubbing sound when the platter rotates.

I have not investigated yet, having no real experience in turntable repair. Any thoughts what might be the problem? I have no idea whether these tables were recently in use or not,,,my guess is not. I'd rather not spend $$$ having a tech trouble shoot if the problem is as simple as adding oil or as serious as DOA.

I also secured a truly vintage Fairchild belt driven transcription broadcast table (cicra 1960)with 2 original 12" Gray Research arms, cartridges and integral metal stand. The set up must weight close to 100#. I would like to have it restored. This table is a real collector's item. Any thoughts who to contact?

Thanks.

Brian