An 1817 US one dollar note is rare and sought after, and its value can vary significantly depending on its condition and other factors. Generally, an 1817 one dollar note in good condition can be worth several thousand dollars. For example, in 2020, a PCGS-certified 1817 $1 banknote in Choice AU graded 58 condition sold for approximately $5,160 at an auction, highlighting its value and demand among collectors.
It's essential to conduct further research and obtain an expert evaluation if you intend to buy or sell such a note. Professional coin grading services provide detailed assessments of these historic notes, considering their condition, rarity, and authentication, all of which influence their worth.