GETTING MY ROYAL555 TO WORK

royal555These last Royals, the 500N and 555 Suncharger were not at the same time made as the 500H however the 555 is exclusive During this line resulting from its solar charging function which to me is a wonderful novelty and I do like its lighted slide rule dial. It’s a disgrace that the last 500 ought to be a step again from earlier styles whil