Put simply, the Allflex tag system is a farm-management tool. It is not an invention that can be described as a first, but it deserves its place in the book by being an innovation that made their product easily the best. Before the Allflex system was developed, stock were identified by either a metal tag or a one-piece plastic tag.
These tags weren't easy to see, they rusted, they fell off. The Allflex system solved those problems and enabled farmers to improve the efficiency of their work.