When you have been collecting stamps for a while, you may begin getting more involved in identifying and evaluating your collection. You will likely have learned things that help you get a more detailed idea of what your collection holds. When you reach this point, there may be a stamp collecting supply that you need to purchase. You can find most of these supplies in a product book from a supply company. You can sometimes find them in hobby shops, although smaller hobby shops are not likely to carry them. Take a look at these interesting stamp collecting supply items for intermediate collectors.
Perforation Gauge
When you are trying to correctly identify your stamps, there may come a time when you need a perforation gauge. This tool is used to measure the number of holes per 2cm length of the stamp