Orchid Cactus

I've had this plant for so long I don't remember where it came from. It hung in the hall on Parkview Avenue all during my married life and beyond, and it bloomed faithfully there. After I moved out of that house, it never bloomed again until now. I put it outside on the deck early in the spring. It has sat there practically unnoticed until I saw this blossom about a week ago. It's the only one, but at least I know the old plant still has what it takes.