Instruction, manual and precautions leaflet for the GameBoy pocket console, specifically, in this case, the USA release.

The “manual“ and leaflet carrying the precautions information are actually fold out sheets as opposed to stapled booklets, this is a standard thing and they come in their original plastic baggie (though this is remarkably similar to the GameBoy link cable baggie) it is again the original item that they were supplied in as hopefully the manual shape shows

Please refer to the pictures for details and drop me a message if you have any questions