Oh no, I've played this before. Some twat posted a "guess how old" on a forum I was browsing, of a pretty girl with big whaps leaning forward to show her full, deep cleavage to the camera. Thankfully I read the whole thread before allowing a hard-on to develop. She was 13.
I'm guessing you've gone the opposite end of the spectrum to avoid prosecution for improper images, so somewhere in the 50-70 bracket I guess. But I don't really want to know, now that I've seen it. I can't face the thought of "I've seen a 67-year old woman's vertical yawn" following me around for days.