Registered items of mail are letters which have their details recorded in a register to enable their location to be tracked. The item is pre-paid with the normal postage rate and an additional charge known as a registration fee. Upon payment of this fee the sender is given a receipt, and (usually) a registration label with a unique number that is affixed to the letter. As the letter moves from local office to sub office and then to a main sorting office, it has to be signed for on a ledger. This process is completed when the letter is delivered and the receiver signs for the item.
History
Registration mail seems to have begun in Great Britain. In 1603, a proclamation was made whereby all letters had to be recorded. This system was in effect a registration system although it was applied to all items sent via the post. William Dockwra's London Penny Post, (in 1680), also recorded all details on letters accepted for onward transmission and unlike the general post office, gave compensation for losses.
