What was the exact value of the fifteen rupees Dakshina in 19th-century French Francs that Madhavrao was asked to collect?

The provided text from Chapter 18 specifies that Baba sent a message for Shama to give 'fifteen rupees as Dakshina.' However, the source material makes no mention of French Francs or any other foreign currency, nor does it provide a date that would allow for an accurate historical conversion. Therefore, it is impossible to provide the equivalent value in French Francs based solely on this text. The focus of this passage in Chapter 18 is not on the monetary value but on the surprising nature of Baba's request and the interaction between the devotees. Madhavrao's surprised reaction and his offer of 'namaskar' instead of money highlights the divine 'play' of Baba, which is the central theme of the anecdote.