Ewing Buchan

• Buchan's exchange tables, in three parts, embracing simple, reliable and accurate forms for ordinary use, in the conversion of sterling into Canadian currency, (and viceversa) advancing by eighths
• Buchan's exchange tables, in three parts, embracing simple, reliable and accurate forms for ordinary use, in the conversion of sterling into Canadian currency, (and vice-versa) advancing by eighths ; also a complete set, specially adapted for large transa