The pattern most commonly associated with Portugal is the M1964 vertical lizard, or simply m64 (commonly referred to as the M1963 or m63 by collectors). Although the original drawings for this pattern remained relatively unchanged for many years, there is a wide enough variation to the colorations of the printed fabrics that many collectors categorize them by their primary or most recognizable color feature. In the case of the example shown below, a very early print on cotton sateen fabric, the purplish-brown and dark green stripes on a pale green background is also the most common coloration associated with the m63 pattern, and reappeared in several incarnations during later years.