My Raise the Devil is a B-revision TMS1100, so it's certainly possible that Black Knight is, too. Is it a full-size 28-pin DIP or the smaller shrink DIP? If it's the SDIP, then it's probably not a B.

Kevin has dumped many B-revision TMS1100s with no damage.

It might be a pain, but we (Hap smile ) could probably figure out the PLAs.