How much is 50 shill?

Excuse me, could you please clarify for me the value of 50 shill in terms of more widely recognized currencies? I'm not familiar with the exchange rate for shill and am trying to understand its worth in comparison to, say, US dollars or euros. Is there a specific conversion rate that I should be aware of, or does it vary depending on the market conditions? I appreciate your help in shedding some light on this matter.