Check the output

A useful comparison should make the visual difference obvious at small size. Put the two versions side by side and check whether the letter width, block height and spacing remain readable. If you are preparing a note or presentation, describe the change without claiming that one version was introduced on an exact date unless the source states that date. Logos are often adopted gradually across publications, so a design can appear earlier in some contexts and later in others.

Common problems and next steps

The most common problem is mistaking a recoloured or redrawn fan version for an official logo. If the blocks look uneven, the letters are the wrong weight, or the colour appears brighter than expected, compare it with a second dated source. Another issue is treating every variation as a new official identity; some differences come from print restrictions, screen rendering or reproduction in a single colour. For a next step, create a small comparison sheet with one row per version, showing the mark, an approximate period and the main visual change. That keeps the history readable without inventing dates or claiming that every adjustment was an official redesign.