I have some Red RCA's that came in boxes the size of reel to reel tape boxes (3-5 per box) that I researched on Ebay a few years ago. They were not selling for even $1 @ that time. I'm not certain where they are stored so cannot check the labels and compare them to yours. I'm pretty certain that they were all classical though.
Do what I did and research yours on Ebay for the fair market value.
Do what I did and research yours on Ebay for the fair market value.