How,when,and where the sign for bucks ($) was introduced ?

Question

How,when,and where the sign for bucks ($) was introduced ?

Answer 1

The sign is attested in business correspondence between British North America and Mexico in the 1770s, as referring to the Spanish-Mexican peso. The piastre was known as "Spanish dollar" in British North America, and in 1785, it was adopted as U.S. currency, together with both the term "dollar" and the $ sign.