Hello Jens,
Fancy meting you here
I was very pleased when you gave me the above information, and have been looking up Bikaner, and ran across Anup Singh,.... 1669-98.
It is very nice to find a tulwar with some definite background!!
It would be interesting if this same monogram appeared elsewhere.
Yes, needs a clean. I will dig out the acid and angle grinder.....

No, not really!!
Robert,
Here is a picture from the seller.
I will try and take a better one, and will attach in the near future.
I am pleased you like it.
This tulwar is very light, with a 'T' spine.
The weight is only .83 KG or about 1 lb 14 oz.