The 1982 proof tombac token (Postma #4101) is correctly listed on this page: N#51325
but the duplicate on this page: N#57199 should be removed, and members should be moved to the item on the first page.
I am sorry. I corrected some other duplicates in the series before and I thought I had fixed all errors, but this series of mint tokens is quite complex. The proof version of this particular token was included in the 1982 proof NL year set, and the BU version was included in the 1982 BU NL year set. The following years, a silver token was included in the proof sets, until the Royal Dutch mint started a new series of tokens.