Her breasts in the Penthouse spread, were real and were medium large for her medium small body frame. It’s unlikely she would have needed surgical enhancement to make them “cleave” in a tight, squeezing outfit.
Here’s a reasonably current worksafe pic of her in street clothes. She is busty but not insanely so. She’s in good shape for a 50+ lady!
Doh! Forgot to link the page
Elvira’s Haunted Hills:
Here’s another worksafe pic that gives realistic view of her “assetts”.
Pigtails? 
Damn, I hope I look that good when I’m 55!
Well, according to Mr Skin (and if you think I’m linking to THAT site, you’re crazy), they are real.
Gosh, I hope you didn’t pay any money. Inspired by this thread, a quick google turned up all kinds of images for nary a cent.
Fine, natural-looking breasts. Too bad the scans are so grainy.
Nope. Didn’t pay a cent.