Chicago Tribune Arts & Fun June 2, 1974 Page 20 Section 6 Hands-off policy, when caring for your collection By Roger Boye DAVID stores his collec- tion of about 100 valuable coins in a large tin can-- U.S. large cents made in the early 1800s, buffalo nick- els, silver dollars, and even one large size U.S. dollar bill from the 1920s. Sometimes, he'll shake the can to listen to the ring of his treasure. When showing the collection to friends, he touches the surface of every coin as if trying to polish the numismatic keepsakes. Unfortunately for David and many novice collectors like him, the value of a col- lection is diminished when it's treated with such ne- glect. Valuable coins should be protected against becoming nicked or scratched. "Rare" coins should never be stored loose in a can, jar, or coin purse because the large sil- ver dollar may nick the Indi- an on the buffalo nickel be- yond recognition. Most collectors store their coins in coin folders or plas- tic tubes. Uncirculated or proof specimens are often kept in individual plastic holders. Folders sold in most coin shops today include slots for all coins [every date and mint mark] made in a partic- ular series. The folders come in many varieties, ranging in price from 49 cents for a cardboard folder to several dollars for a folder made of sulphur-free material with clear plastic covering each coin. In addition to protecting coins from nicks and scratches, folders will help to keep them free from for- eign elements which could tarnish or discolor them. For example, sulphur will tarnish coins; for this rea- son, collectors will not keep coins in ordinary paper en- velopes which have a high sulphur content Another important "don't" in the caring of coins is to never touch a valuable coin on the surface. Always grip it by the edge to prevent smudging the surface. Or use tongs or vinyl gloves when handling the coin. Also, tape should never be put on a coin because it will of- ten leave an indelible smudge. The collector who wants to keep several coins in a se- ries [but not try to obtain every coin in the series] may want to buy some small plastic tubes at a coin store. Those are made in several sizes to hold cents thru sil- ver dollars. Incidentally, coins should never be cleaned or pol- ished. Cleaned coins, espe- cially when cleaned by a novice, usually sell at a low- er price.