Yes, thanks, you'd made me curious and I found the web site (yours, I believe). It looks a bit similar to Davidson's, but I obviously have some more exploring to do.
And, no, I guess it's not depression glass. ;-) The bottom shows a vague press mark, and the top has a clear seam/joint. I am also starting to understand why it could still be old and have little wear if it is not a sugar bowl, and I guess it's not a sugar bowl after all.