The original CIÉ livery was dark green with and eau de nil stripe below and above the windows, similar to the former livery of Dublin United Transport Company Buses, but this was replaced in the mid 1950s. They also carried the "flying snail" emblem in the same eau de nil colour, numerals were the same, and lining, snail and numerals were all themselves thinly lined in gold. From 1955, dark green was discontinued on coaches (though retained on buses) and coaches were gradually repainted in a new lighter green livery, which was also applied to new stock after 1955/6. This was a much lighter mid-green with a thinner "eau-de-nil" (= very light green) stripe applied below windows and the flying snail emblem on some, but by no means all, vehicles. Park Royals never carried flying snails. At the end of 1955 unpainted aluminium coaches were introduced with large red 1s and 2s to indicate class and small red running numbers, but this did not wear well in everyday service. From 1958 all carriages were repainted the new standard green, somewhere in between (English) Southern Region green and Isle of Man 1970s era locomotive green. All CIÉ green livery variations had black coach ends, and while roofs were also usually black, some were occasionally very dark grey.