Posted By:
JayWesley-The revenue stamp simply showed that the appropriate tax was paid on the tobacco product. It was to be placed on the box, not on a box insert which the trade card could have been. Originally revenue stamps were positioned so that the stamp would be defaced when the product was used thereby eliminating the possibility of reuse (ie over the bung on a beer keg so that tapping destroyed the stamp). I'm not sure where this stamp was placed or if that rule still applied in the late teens.
That said, this is a neat card and I wish Hal the best with the sale.