HMS Concord was a destroyer of the Royal Navy.
HMS Venerable (R63) was a of the Royal Navy.
R-phrases (short for risk phrases) are defined in Annex III of European Union Directive 67/548/EEC: Nature of special risks attributed to dangerous substances and preparations.
The R63 is a tarred provincial route in South Africa that connects Calvinia with Komga via Carnarvon, Victoria West, Graaff-Reinet, Somerset East and King William's Town.
Expressway R63 (Rychlostní silnice R63) is an expressway in northern Czech Republic.