I'm pretty sure the H216 was too new to have been used in an MA10 or MB10, but I don't know which core planes or other modules were used. They might have still been using core modules made by external vendors like Ferroxcube.
It's looking to be the same vintage as the 11/05 memory I have (the H214) so early 70's.
I'm uploading a picture of that and some 11/24 pictures to: https://www.crystel.com/pdp Should be there in an hour. CZ
