CAVEAT!! Be very wary of guides you find on the internet. Many are incomplete, outdated or just plain wrong.
In fact, the guide you posted shows a creed with K3H as the prefix. Without the full bag shown, it's tough to authenticate, but the prefix is seen on many, many fakes! If a knowledgeable person is showing various examples, wouldn't they show a picture of a creed that is unquestionably authentic?
On another creed, I think I'm seeing "marXings," which would indicate that she is showing a creed from another "possible" fake.
I believe that her dates with regard to creeds are inaccurate too but Hyacinth is more expert in deciphering dates and plants than I am.
These guides are much more helpful and more importantly, accurate!
http://search.reviews.ebay.com/members/salearea