Question: The M63, is a combat helmet of South African origin, based on the French Modèle 1951 helmet, the M63 replaced the Brodie helmet, a British type, and steel combat helmet designed and patented in London in which year, by John Leopold Brodie?
Sentence (from "M63 helmet"): It was issued until the 1980s when it was replaced by the M87 kevlar helmet.
Relevant evidence: No