Black apron with small white (woven) dots. The apron ties are short and end in a silver-coloured buckle.
https://trc-images.nl/collection_images/hires/2016/2016.0568c.jpg#\\TRC-SERVER\TRCSharedWork\TRC Database\collection%20photographs\2016.0500\2016.0568c.jpg#
https://trc-images.nl/collection_images/hires/2016/2016.0568c_2.jpg#\\TRC-SERVER\TRCSharedWork\TRC Database\collection%20photographs\2016.0500\2016.0568c_2.jpg#