Coin of the Realm: What It Is? Or, Talks About Gold and Silver Coins, With a Few Practical Lessons Based on "Norman's Single Grain System", Also, as an Appendix, an Exchange Calculus, Five Papers and a Memorandum on Money

Coin of the Realm: What It Is? Or, Talks About Gold and Silver Coins, With a Few Practical Lessons Based on "Norman's Single Grain System", Also, as an Appendix, an Exchange Calculus, Five Papers and a Memorandum on Money