From tweets from @Yoast and @aaronwall

https://www.google.com/intl/en_us/adwords/select/afc/ads/flintstones.html

And,

http://www.google.nl/search?q=site:https://www.google.com/intl/en_us/adwords/select/afc/ads/

Hmm link went wrong, then this one: http://yoa.st/hzp7k9

I wonder if these are examples for Adwords support.
https://www.google.com/intl/en_us/adwords/select/afc/ads/videoadsdemo.html

Good find, that looks to be it.

They are from 2006(!):
https://www.google.com/intl/en_us/adwords/select/afc/ads/raboplus.html