Numismatic selections from Scientific American: 1893 - A Coin Holding and Delivering Device, 11/25; Disappearance of a Coin, 9/2 (Supp. 922); The Commercial National Bank of Chicago, 6/10.
Numismatic selections from Scientific American: 1864 - The United States Mint and Coinage, 2/13; Die Engraving, Sinking and Multiplying, 10/1; Currency - Money, 2/6 (10n6).
Numismatic selections from Scientific American: 1918 -Underground Hangars of the German Airmen, Counterfeit Gold Coins Worth More than their Face Value, and more, 5/4 (118 n 18).
