CBS 1B R1 S4 V4 line board 91DR10388754 846519247 ISS 1, see scans.  UNTESTED, AS IS for parts, repair, scrap or art.  I don't know anything about these, picked them up from a storage unit auction.  Buyer to pay calculated shipping.  I am happy to combine items to save you the most on shipping.  Please visit my ebay store.  Feel free to email seller with any questions you may have.