[69L72RS]

I would agree with Matt if it has the correct carrier. A complete undamaged core from that time frame should be worth ~ $10K in my opinion.

I will note that, from the pictures, the tubes "appear" to have some pitting.

If you choose to strip the paint from the housing, do it chemically to maintain the original metal finishes and surface condition. Sanding marks will detract from the value more than rust and or pitting in my opinion.

Hope this helps.
Eric