Cleaning and Preservation of Coins and MedalsA practical aid to collectors of all coinage throughout history. It's but one title of over 100 published by this leading specialty publisher in numismatics. A partial list includes: Bower's US Half Cents, $10.00; Breen's US Mint Proof Coins, $10.00; Crosby's Early Coins of America, $45.00; Evan's History US Mint, $20.00; Kliman's Two Cent Pieces, $10.00; Low's Hard Times Tokens, $20.00; Miller's State Coins Connecticut, $30.00; Newcomb's US Copper Cents, $50.00; Valentine's US Half Dimes, $35.00; Pradeau's, Numismatic History Mexico, $25.00; Wang's Early Chinese Coinage, $35.00; Baldwin's Symbolism/Greek Coins, $25.00; Curtis' Tetradrachms Roman Egypt, $55.00; Head's Historia Numorum, $90.00; Icard's Dictionary Greek Coin Inscriptions, $50.00; Mattingly's Roman Coins, $35.00; Sydenham's Coinage of Nero, $25.00; Kraay's Archaic & Classical Greek Coins, $95.00; Milne's Catalog Alexandrian Coins, $55.00; Lhotka's Medieval Coin Book Series; Klawan's Ancient Greek Coin Outline, $15.00; Kann, Currencies of China, $45.00; Sheldon's Penny Whimsy, $50.00; Creswell's Chinese Cash, $12.00; Durst's World Gold (& Silver) Coin Value Guide, $9.00 each. To order books above or complete list of over 1,500 titles on all aspects of coins, medals, tokens, paper money, stock certificates ($3.00), contact Sanford J. Durst, 11 Clinton Ave., Rockville Center, NY 11570. Telephone: 516-766-4444 or Fax: 516-766-4520. |
Contents
INTRODUCTION 100 Necessity for Coin Cleaning | 1 |
Chemicals and Chemical Symbols | 2 |
Numbering and System | 3 |
Copyright | |
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acetic acid alcohol alloy aluminum ammonia annealing aqua regia aqueous artificial attack boiling brightening bronze carbonate cast coin caustic soda cloth coating coin collector coin surface coinage metals coins are placed common salt compounds copper coins Copper oxide copper soap corrosion dioxide dirt discolorations dissolved edge especially example five per cent foil galvanic gilding glass brush glue gold grains grams heated horn silver hydrochloric acid hydrogen sulfide involved iron coins Iron rust lacquer lead Mechanical cleaning melting point mercury method minting mold necessary neutralized Nickel nitric acid occur oxygen paper paraffin patina plaster plasticine Plastics Platinum polished plates possible potassium cyanide potassium sulfide precious metal removed rubbed rubber Section sheet silver alloys silver chloride silver coins silver sulfide silver-plating soaking sodium hydroxide sodium hydroxide caution soft spirits of ammonia sulfuric acid tarnish temperature thin tin plague treatment Verdigris zinc coins Zinc oxide zinc pieces