Hi I have just started collecting again after a long break and their a couple of features on modern stamps which I would like to know the names of. The first is a long curved gap in the perforation on opposite sides of the stamp. And the second are the two pill shaped cuts into the stamp designed to stop the stamp from being removed and reused. Cheers William
William, the Linn's article by Michael Baadke called the oval curved gaps in the perforations "syncopated perforations". These "syncopated perforations" are not necessary on opposite sides. I have seen them as you suggest, but also as the Figure 5 illustration shows (on the same side). Once again I refer you to a blog that discusses an article by Michael Baadke who refers to what he calls "security slits" on stamps to prevent their reuse. I can't say that these two terms are the definitive "names", but Linn's Stamp News is probably the most circulated philateltic weekly in the States and Baadke one of the best columnists. http://www.linns.com/howto/refresher/security_20000605/refreshercourse.aspx http://machinmania.blogspot.com/2008/11/linns-editorial-on-slit-stamps.html
very useful links Hoch. William, welcome to the forum and it is great to know that you are starting your collection again.