When you open your drive, all Files/Folders are supposedly arranged by "Date Created/Modified", in the order of earliest to most recent date. If not, depending on your OS, select "View" > "Arrange Icons By" > "Date Created/Modified". You'll probably see KEE-TECRA is arranged before KEE-TECRA(1).
In order to confirm this arrangement, right click each folder, then "Properties" to see "Date Created/Modified". Similarly, you can use this tip to check files in those folders.
Additionally, you would also be able to identify which files are backups by looking at their extension (a three-letter word that follows the filename and a dot) such as "xxxx.tib" created by SeagateDiscWizard.
By now, you can tell which ones are backups and which ones are older than the others.
