The image of the emperor on the obverse is the same as on the previously presented ducats of another mint, Gelderland, from 1648 and 1649 and on the later ducat from 1650. This explains why the position of die sinker in both mints was entrusted to the same person. The similarity can also be seen in the lack of punctuation of the legend on both sides, the shape of letter punctures (e.g. E, M) or in the 8 dots evenly spaced around the square with the inscription on the reverse. On the reverse, it is also clearly visible that the letters A have been punched with inverted V letters with a dash added.
Nice condition with remnants of gloss.