is this the ultra-IQ phenotype?

[10khitman]

I think it has a lot to do with the portrait style artists used back then. a lot of the time they would change features of the irl people to actually make them look like some conventional pheno. 

realistically if you look at geniuses from say the 20th century where we had photography most looked pretty different IE turing, tesla, wittgenstein, fischer, rachmaninoff, etc...