50 pin centronics in-line telecom breakout terminal

This is an oddity - 50-pin centronics breakout terminal for some special function that looks to be telecom / PBX based, even has a part number of 149A.  Looks to be to have been created to take ribbon cables or purpose built cables as it has a lockdown on each side to make sure the cables stay put.  Takes female on one side and male on the other and shows the pins by their function on the breakout underneath.  Centronics connectors themselves have gold pins so it must have some value.  Anyhow, being sold as-is, as found, and offers are welcome.