The history of currency in Canada is a bit more complicated. And it is relevant here because you are dealing with a Halifax smith.
Canada was composed of Upper and Lower Canada (Ontario and Quebec, essentially) and the Maritimes. The maritime provinces were a centre for much trading activity due to their important seaports. And the international currency was not the US dollar but the Spanish dollar.
"One Spanish (or colonial Spanish) silver dollar weighing 420 grains (385 grains of pure silver23) [was defined as being worth] 5 shillings, local currency. This valuation of the Spanish dollar was to be used in settling debts. In effect, the Spanish dollar became legal
tender in Nova Scotia." The
Halifax rating, as it was known, remained in common use well after the British authorities overturned it as the standard. That rating was also adopted by Quebec (Lower Canada)
Moreover,
"a Spanish silver dollar, 'the principal measure of exchange and the basis of pecuniary contracts' in North America, was appraised at 4 shillings and 6 pence in London, 5 shillings in Halifax".Bank notes were first used in 1817. Accepted by the public, they were denominated in both Pounds and Dollars and were used for trading in the Canada and the US - though often at a discount
.
"During much of the nineteenth century, a bank’s notes had to be accepted at par only at the issuing office. Elsewhere, the notes were discounted, even by branches of the issuing bank." However, constant converting and multiplying was a drag on commerce (even locally; see below) and the US dollar was accepted as the international standard; as a matter of fact workers on the Rideau Canal were paid in US dollars. But that was Upper Canada.
All bank notes of the maritime provinces were denominated in
Pounds because of their strong ties to Britain and relatively weak commercial links to the US.
The British then tried to persuade the Maritimes to adopt the Pound as its
official currencym hoping that it would spread from there to the rest of the country. But Nova Scotia was not really willing to make the first move and the Pound did not get more than a toehold in Canada after all. And the Brits were stymied in their efforts to develop an Empire-wide currency.
All quoted information is from
http://www.bankofcanada.ca/en/dollar_book/pre-1841.pdfThere is an amusing (if vexing) anecdote in the article.
"
Money madnessThe diversity of notes and coins in circulation
was frustrating, making simple transactions complex.
In a letter to the Acadian Recorder in 1820,
an irate citizen in Halifax complained that
when he bought vegetables costing six pence
in the market using a £1 Nova Scotian
Treasury note, his change amounted to
93 separate items, including 8 paper notes from
four different merchants or groups (ranging
in value from 5 shillings to 7 1/2 pence), one
silver piece, and 84 copper coins. The letter
ended “For God’s sake, gentlemen, let us get
back our DOLLARS” (Acadian Recorder,
21 October 1820, Martell 1941, 15)."
(If you think that was bad, in BC gold dust was also accepted as currency)
.