Please add Pieter Wetselaar (1923 - 2000) to designers.
This page has a lot of information on him: https://ilibrariana.wordpress.com/2016/07/11/pieter-wetselaar-1923-2000-postuum-eerbetoon-aan-een-uitmuntend-kalligraaf-en-graficus/
He designed Dutch and Belgian medals during the 2nd half of the 20th century.
Anton
