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The matter is important, however, and especially so asone becomes advanced in his or her collecting interests. We have already seen in Chapter 8 how perforationsare identified or measured. Now let us take into consider-ation the various kinds of perforations and the methodsby which they are applied to stamps. The original perforating machine, one that is still incommon use for the stamps of some countries, is the"comb" perforator. As the name implies, this is aninstrument shaped like a comb. The pins that do theperforating are arranged in a long row to fit the widthof the sheet of stamps and the extensions of shorter rowsof prongs are arranged so as to fall between each stamp,like this: |
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