Just a short one tonight. Will be rounding up my Beatrix stamps tomorrow and will then show some nice artwork, but for tonight just something which I found out years and years after the stamps had been issued!
With earlier Dutch definitive sets, the high values were usually enlarged versions of the low values. With this Beatrix portrait, enlargement apparently was not possible, but some security features were needed.
We ended up with the now very familiar elliptical perforations at the sides. But there are also special (larger) corner perforations. You hardly notice those when viewing a single stamp but when you look at a block of stamps, they become obvious. Great, isn't it!?