The Berry Brothers were as busy as any business in self promotion at the fair; they took advantage of many opportunities to showcase their products and this aluminum medal was not just another idea; it was a prooflike Gem BU storecard. Many businesses promoted their services and products and while some were not known down the road, there were some of the largest companies in the world at the Expo and most were very adept at self-promotion. Gem BU and prooflike,