The countermarking of coins with business advertisements is usually considered a thing of the past done more in the 18th - 19th centuries. I had won this particular lot in a local Kurt Krueger auction here in Iola 15 years ago and it recently turned up while I was searching for some other items.

The host coin is a "Una Onza Troy" Balance Scale silver bullion coin struck at the Mexico City Mint in 1949. The countermarking is cleverly placed in the four fields surrounding the coin screw press and reads "GENERAL - POPO / 25 ANOS / 1924 with a comical looking figure at lower right. I was told some years ago that this translates to the 25th Anniversary of General Tire in Mexico City.