The mint was aware of the date placement problem, as the series progressed they did try to make the dates bolder and also slightly higher in relief. which is why late 20's and 30's examples even when well circulated and worn still have the date visible. The only other Date placement option that I see would have been under the Indians chin. This would have required a smaller Indian head or reduced size of date. It would be a whole lot better protected there though... But I have extensively researched the series and I know of no document explaining the date placement so all I can do is speculate.


















