The style of shirt had been used several times before. In March 1963 Glentoran would lift the Gold Cup at Windsor Park by defeating Derry City 3-1. The design appeared mid season and slowly replaced the version with the black vertical stripes. Trevor Thompson, Matt Doherty, Walter Bruce and a young Billy McCullough were all starting to show promise. The success starved supporters of East Belfast sensed that they were witnessing the first shoots of a very successful new side. The Glens also wore this shirt in an epic friendly against Glasgow Celtic at the Oval on the 28th February 1963 losing to the odd goal in nine against the Scottish side and also during an amazing goal spree in the 1964 City Cup, which Glentoran went on to win under Gibby MacKenzie. This shirt was worn with distinction against the Greek giants Panathanaikos in The Bear Pit Athens on 30th September 1964 with Glentoran scoring two away goals in the 3-2 defeat.
This is another extremely rare example. Worn primarily by Glentoran Second XI, it was used by the first team squad to play in against Partick Thistle in the Fairs Cup and also when Glentoran defeated Portadown 4-0 in the Irish League (a game in which Trevor Thompson scored one of his frequent hat-tricks) The Glens introduced outrageously modern white socks with red and green squares around the turnover to compliment this shirt. Glentoran Seconds were still wearing this shirt when winning the Steel and Sons Cup final in 1965.