Before computers Bank and Mortgage Companies used these books to establish what a payment amount was going to be for a loan or mortgage based on the term and rate. The trouble was that interest rates changed from time to time. This payment book runs from 5% to 8%. It was published for Delaware County National Bank, Chester PA. That Bank is now through consolidations, mergers and takeovers part of Wells Fargo. They were printed for use throughout the bank but special business customers would be recipients from time to time. It has 224 numbered pages. It measures 5 3/4 x 3 1/2 inches. We must collect 6% Pennsylvania Sales and Use Tax at checkout. Thanks for stopping by!