55. #$€£¥@

https://en.m.wikipedia.org/wiki/United_States_dollar

https://en.m.wikipedia.org/wiki/Penny_(United_States_coin)

https://en.m.wikipedia.org/wiki/Nickel_(United_States_coin)

https://en.m.wikipedia.org/wiki/Dime_(United_States_coin)

https://en.m.wikipedia.org/wiki/Quarter_(United_States_coin)

https://www.uscurrency.gov/history

https://www.usmint.gov/learn/history/us-circulating-coins

https://en.m.wikipedia.org/wiki/Spanish_real#:~:text=The%2520real%2520(English%253A%2520%252F%25C9%25B9e%25C9%25AA%CB%88%25C9%2591l,by%2520the%2520peseta%2520in%25201868.

https://en.m.wikipedia.org/wiki/Spanish_peseta

https://en.m.wikipedia.org/wiki/Franc

https://en.m.wikipedia.org/wiki/Pound_sterling#:~:text=In%20the%20British%20pre%2Ddecimal,libra%2C%20solidus%2C%20and%20denarius.

https://en.m.wikipedia.org/wiki/Prussian_thaler#:~:text=The%20Prussian%20Thaler%20(sometimes%20Prussian,or%2016.704%20g%20per%20thaler.