Three Chinese characters (?) on the entrance of the History Museum of Ho Chi Minh city (Characters identified: 寶藏院) Since visiting the museum, I've been very curious about these three characters (shown below). I've unsuccessfully tried to search it on the Internet. Their pretty calligraphic style is one of the reasons why I failed. Also, there is a possibility that these characters are Chữ Nôm.

Now I'm here to seek help. What are these characters?
it's 寶藏院, roughly &quot;the courtyard (院) of treasure (寶藏)&quot;
the right one is 寶:
http://humanum.arts.cuhk.edu.hk/Lexis/lexi-mf/search.php?word=%E5%AF%B6
middle one is 藏:
http://humanum.arts.cuhk.edu.hk/Lexis/lexi-mf/search.php?word=%E8%97%8F
left one is 院:
http://humanum.arts.cuhk.edu.hk/Lexis/lexi-mf/search.php?word=%E9%99%A2