Elegant Glass Creamer?

Another thrifting find, also stubborn. I went though all the posts last night and boy do I envy one gentleman about 8 months back who said he had only two mystery pieces on his hands that were driving him bonkers! I've no shortage...

This is pressed glass, with a ground glass base 1 5/8" across. It's 3 1/4 inches high, to the topmost tip of the spout. The cute little scalloped shells along the back edge got me, as well as the handle being that angular shape I associate with depression glass. But it's a thick, solid piece, not particularly fragile.