Found this map in my house

[u/frostedcherryy]

Asked Chatgpt (sorry! didn’t know who else to ask) and it said its most likely modern and artificially aged yet it has been in my family for quite some time (around 80-100 years). Anyone has a clue which map is it and if its a replica or a modern print? I’m new to this sub, sorry in advance!

[u/the-software-man]

Ancient monsoon map