Very nice find. Those tokens were popular in the 40's and 50's and generally were of two types, ones that had advertising on them and others that simply had the "never go broke" on them which you could get from a machine in the old "penny arcades" of the day. Pictured is one I bought at a coin show a few years back which is one of the advertising types. Mine has a 1955-D Lincoln and cost me three dollars.