That final scan (from Harnit & Hewitt Cigars) is interesting as the right side of the invoice contains the following quote:

According to my lookup of the United States Food Administration Licensing, it was a World War I effort to conserve food and was terminated by 1920, which would suggest that the printed invoice used in the final scan was almost a decade old at the time of use.
It is also interesting that a cigar company would come under the auspices of this program, however, further checking suggests that Harnit & Hewitt was both a Cigar Company and Grocer, so presumably they just had different invoice forms printed for the various divisions of the company.