Unfortunately, broken is the way it came and I don't have the broken off piece.
Here are some picks so far. I am replacing the foam right now.
https://imgur.com/a/yUSlwhp
Other than this space bar everything looks to be in really nice shape.
It was listed as a 3276 but
I don't see anything in it that indicates a model number or a year. From what I have(n't) found online I don't know what difference there is between the 3276 and the 3278 but it seems to be one of the two.