Ariel,
The mixed hilts are possible from Deccan.
There are two reasons why I wont say it 100%. First I would like to have it in my hand, and secondly you should read what Robert writes in the Jaipur book page 128-129. He writes 'possible Kotah or Bundi', and further 'The design points to the hilt being Deccani, from the seventeenth-century, but it appears to draw on that style rather than being part of it.'
For all I know, the sword Robert shows could be Deccani, captured /bought and taken to Rajasthan, and used there till it ended up in the Jaipur armoury.
Jim,
I think you are doing quite well when judging the Indian weapons
.
Jens