The principal tools required by every philatelist aresimple and inexpensive. They consist of stamp tongswith which to handle your stamps, a perforation gaugeand millimeter rule with which to measure the perfora-tions on your stamps, a watermark detector to help youidentify watermarks, and a supply of stamp hinges toattach your stamps to your album.
A satisfactory set of all four items, including a gen-erous package of suitable stamp hinges, may be pur-chased from any stamp dealer or any place where stampsare sold for about one dollar. You can, if you wish, payconsiderably more for fancy gadgets but for all prac-tical purposes the "five and dime" type of tool will beeminently satisfactory. Many an erudite expert operateswith such.