Magic Chef Oven data plate

[roadeo]

I have recorded from an aluminum data plate(2"x4") in a Magic Chef wall Oven. The plate was on the rear wall near the floor of the oven.

There is no logo nor any screen printed or etched info on it at all. Maybe it was there and has been scrubbed off (but I doubt it from observation) .
There is a stamped code of some type on it;
This is the layout and the code;

_______________________________
BLT 93D-2SV-M-97 L
2124



________________________________

Anyone have a clue what the code indicates?

Also has Magic Chef (now division of Maytag) been owned by others?
The oven is circa 1970s I think.