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, With Valuable and Original...
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, With Valuable and Original...