* Crusader Rabbit: This is a classic animated series, but there's no specific release date called "1949" for it. It began production in 1949 and ran until 1951. You may be thinking of a specific episode within that timeframe, but without more information, it's impossible to be precise.
* Great Horse Mystery 2-2: This doesn't seem to be a known title. There's no indication of a show, movie, or any other media with this name.
To help me pinpoint the release date you're looking for, please provide more context:
* What type of media are you interested in? (Movie, TV show, book, etc.)
* Any other details about the story or characters involved?
* Do you have any specific episode or chapter numbers in mind?
With more information, I can help you find the correct release date.