Washington See the Chart Showing Old and New Forms — Sorted by Existing Number is a type of document used to show the history of an existing number. It is typically used to track changes in a number over a period of time. The document shows the original number, as well as any intermediate numbers that were used in the past. It also shows the current number, along with the date the current number was established. This document is often used in financial and legal contexts, as well as for tracking customer numbers and other personal information. Different types of Washington See the Chart Showing Old and New Forms — Sorted by Existing Number include individual and business versions, as well as versions for tracking records such as property and vehicle registrations.