(Image: The News-Herald of Franklin, Pennsylvania--Dec. 14, 1951)
In 1951, the US Army wanted its soldiers to be more careful with the upkeep of their equipment. Although they didn't have to pay for their arms, they should be mindful that American taxpayers did and treat it accordingly. So it circulated posters among American soldiers that illustrated how much common weapons and vehicles cost.
Weird Universe says that at least one Army Reserve center went so far as to put literal price tags on its gear. One soldier commented to a local newspaper that "It looks like a department store here."
-via VA Viper