The first official club crest was a blue circle surrounded by a belt with the letters A and C in the centre in white (as the club colours were at that point). The second was from 1910, consisting of a red-and-white flag (newly adopted as the shirt colours) with a red square in the top left corner, containing the initials of the club in white. The third, from 1913, involved the same flag, but in this case shown on a pole wrapped around a football (this is very similar to the Real Sociedad crest still in use today, ignoring the crown of royal patronage).