What is the name for an order a higher court issues to a lower court to obtain the records of a lower court in a particular case

The image below is a poster from world war i: image of poster that shows a hun soldier climbing out of the water. the following message is on the poster, beat back the hun with liberty bonds. public domain what was the main purpose of this poster? to create public distrust of germans to encourage young men to enlist in the army to demonstrate the reason for entering the war to generate financial support for the war effort