Hi gang

Unfortunately the bits of the lady's dress that we really need to see for dating are completely obscured by the gown.All we have is a lace bertha which could be just about any date, a bit of collar which isn't very high, and a sleeve that is a bit looser at the wrist than the various 1890s styles. There seems to be a hint of a cuff on it, which would put it into Edwardian fashion. I think it's early Edwardian.
The dark surround was popular in the 1890s, though, and is not typical for Edwardian photos. Could be old cardstock, I suppose.
Is there any printing on the back? Could you show us if there is please.
It's going to be a cabinet card...way too late for a cdv. But I do think this photo is way too early for 1924.
About the only thing I can say with any reasonable certainty is that this is a BA. She is holding her degree so we know she has graduated. BA graduates move the tassel from the right side of the cap to the left while MA graduates move from the left (which they already have) to the right. So she is BA. Or BSc I suppose

My opinion, and you may get others

Cheers,
China