Metaphorical Senior Citizens Stamps 1997 & Allegorical Senior Citizens Stamps 1999
The Hugo de Groot stamp (NVPH 1283) possesses, in addition to an allegorical section (a direct reference to the statesman and person Hugo de Groot), also a metaphorical section (an indirect reference to the imprisoned statesman who managed to escape Loevestein Castle using a book chest). So via...
