As you may probably know, there's a generic currency symbol supposed to replace specific currencies. So, instead of using $, €, £, or ¥ I can use ¤ which is the generic currency sign.
The sign was encoded for computers in 1972, added to ISO 646 that year and it even has its own HTML entity clearly labeled for what is intended to be:
¤ , so it's evident efforts were made to make this symbol a norm.
However, a quick study we did shown what we expected: out of 30 users between 18 and 45 years old, only one person could recognize this symbol as the symbol for currency. Study was done in Buenos Aires, Argentina, so there's some space for localization issues. Still, even accounting for localization, the results are quite demonstrative of the hypothesis we had.
Thus, my question is: is there any study that effectively shows this symbol is recognized by a relatively broad audience in any country? And if not, is there a GENERIC symbol with better recognition (it's very important for us not to use an specific currency)?