Tradition & Quality RoyalPosthumus is one of the oldest and largest stamp manufacturers in Europe. We combine 150 years of experience and quality with an unfailing sense for modern trends. Owing to the most modern and extensive technology, RoyalPosthumus is able to manufacture all products in-house, bringing all production steps and their supervision under one roof. In addition to the themes presented in this catalogue, we can also produce special designs as per your request.