This wallpaper ("No Public Access") contains the pattern seen at index 2 in my OP image.
It looks like the pattern of text blocks around the circular design is different.
Cropped and blown up:
Gamma Adjusted:
Partial Transcription (all phrases translate to "Keep It Clean")(?)
Houd het schoon (Dutch)
(?)
maintenex la propre (French)
halten Sie es sauber (German)
(?)
mantengalo pulito (Italian)
mantê-lo limpo (Portuguese)
(?)
(?)
держать его в чиÑтоте (Russian)
mantengalo limpio (Spanish)