I never though I would as this question, but...

I have a ceiling fixture that is a two blub domed glass on a metal ceiling
mount. It was purchased at home depot. There is NO discernable means to
remove the glass from the metal part other than a seam. No screws, no
center shaft, nothing. The glass is firmly affixed to the metal. I also
tried rotating the metal base but it moves only a very little bit.

Believe it or not, I mounted this fixture myself. But I can't remember how
to remove the glass to change the bulbs (senior moment I suppose).

Has anyone any idea how I might accomplish this task short of visiting my
nearest home depot?

Thanks