I'm cleaning out some old items and I have an upper dash pad that I'm not sure exactly what it fits. I have it narrowed down to either a 1968 or 1969 B body. My Googling has not been very helpful.

It has some numbers debossed into the vinyl, 31205 and 2822823.

From what I can tell '68 and '69s differ possibly in their widths, heater control recess and maybe the edges are different. I attached pics showing these areas.

Thanks in advance for any help!

1968 B bdoy only

That's a '68. The 69 upper pads had a different contour facing the driver - angled at their face, and flatter in contour, instead of the "blade" look of '68.
Same width, interchangeable, and '69 style was also used for the '70 models.

My ‘68, that I’ve had since birth, does not have the notch for the heater controls that the picture shows. I’ m pretty sure that this is a ‘69 B Body dash pad.