The body of the Fitzgerald edition (ArtDeco) was originally made in white; brownish or amber-coloured shimmers arise when the plastic was over a longer time exposed to UV radiation, e.g. in illuminated shop windows. On some examples, however, the discolouration affects the entire body evenly and not only the one-sidedly exposed side, which can indicate further material influences or even storage in light. It is no separate production variant but an age-related discolouration. Originally, the Fitzgerald exists in clear white and in differently strongly browned intermediate stages.