Scrum Guides 2020 – 2009
Here are some Scrum Guides:
This appears to be the only Scrum Guide issued only by Scrum.org
This is the original Scrum Guide, that Ken Schwaber wrote and issued before he left Scrum Alliance.
There is a proto-Scrum Guide as an appendix in Ken Schwaber’s book: Agile Project Management with Scrum.