Someone sold one on eBay for $86+ in May 2025 and the condition is not as good as yours. There is one on sale for 679 GBP right now and again the condition is not as good at yours, but no buyer.
Another one, 10 rupees PMG15 asking for $500, but no buyer.
I believe you have a rare note here, and with that condition, you can fetch at least for a couple of hundreds but I can't tell you what would be the actual fair value.
This is just my opinion.
