The Royal Mail is a postal service and courier company in the United Kingdom, originally established in 1516. The company’s subsidiary, Royal Mail Group Limited, operates the brands Royal Mail (letters) and Parcelforce Worldwide (parcels). General Logistics Systems, an international logistics company, is a wholly owned subsidiary of Royal Mail Group. For a brief period in the early 2000s, the group used the name Consignia before reverting to its original name. The company provides mail collection and delivery services throughout the UK. Letters are deposited in a post box, taken to a post office, or collected in bulk from businesses. Royal Mail owns and maintains the UK’s distinctive red pillar boxes, first introduced in 1852, many of which bear the initials of the reigning monarch. Deliveries are made at least once every day except Sundays and bank holidays at uniform charges for all UK destinations. Royal Mail generally aims to make first class deliveries the next business day throughout the nation.