I believe it was the Dutch engraver Sem Hartz who once said when talking about recess-printed stamps that they are the gentlemen among stamps. And how true is that! He had just as outspoken an idea about multicoloured stamps: rubbish! In his view a well-engraved stamp only needed one colour. So he would hopefully have been pleased if he could have seen this post of mine, for it will feature nothing but monocoloured recess-printed stamps!
I'm still ploughing through the stamps I got from my friend Paulo, you see, and there's quite a few of recess-printed stamps among them. The set that I like in particular is the 1966 set to mark the Tercentenary of the Solemn Promise to Our Lady of Luxembourg. In plainer English this means that in 1666 the Mother of God was chosen as Patron Saint for the City of Luxembourg.