Interesting - but there are a whole lot more and better portraits from the same period in the Cairo Museum. That was the Greek period and they were very big into lifelike portraits of the deceased on the casket.
I was just going to respond something similar to the above comment. I’ve only seen pictures of the Egyptian museums.
What’s exciting isn’t the particular portrait but the work they’re doing in identifying the artistic approach. Had a wonderful class at the Lorado Taft studio in using antique approaches like egg tempera and silverpoint, and this would have fit in perfectly.