“A foreign coin is furnished, say of Rome. The request would be:
“‘Look at this. Do you know what it is?’
“The answer is, ‘A coin.’
“‘What country?’
“‘Italy;’ as Italy stands sixth in the list of countries, as will be seen by referring to the table.
“A Mexican dollar will elicit the remark:
“‘Look at this, now.’
“‘A silver dollar.’
“‘Tell me the country.’
“The reply will be, ‘Mexico,’ as that country stands tenth on the list.