Hi B.I.
Nice post with an interesting connection. Just a thought....The dagger in the painting does not have the top scabbard mount whereas the actual dagger does....?? Do you think the painter could have made a mistake like that considering that he was doing a painting with so much realistic detail...that too for the emperor of India...where mistakes could mean the loss of your head...?? Must admit though that it does look like the emperors dagger
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Regards,
Karni