It was acid tested in 3 places and filed too.
Acid testing is unreliable and destructive. To get a correct result, such an item would have to be deep filed and be damaged forever, imagine what such an item would like after it had passed thorough the hands of dozen or so collectors/dealers who used such a test during the course of it's 100+ years history. There are other and better ways of testing, such as spectrometer testing, such a method is non-evasive and safe.
I was very skeptical when I bought the dagger. (admin edit - see Posting Requirements )
It doesn't *look* like something VC&A would make, but then I read about wealthy Indians having their jewelry redone in Paris and NY, and now the "ET" French foreign mark, which was (I now read) used after 1893 "for pieces of art or rarity", which these jade handled Mughal daggers certainly are. One of my concerns about this being VCA was the clumsiness of the strike of the MD and ET marks, but if the ET mark was put on by a government official the clumsiness makes sense. I would assume the MD and ET marks (which are together) we done at the same time. I wonder what the MD is?
Either I'm being overly optimistic, or the ducks are lining up.