Hi Jim,
thank you for your valued opinion

I always thought that military pattern swords had very strict guidelines, with little or no variation. I see now that this is incorrect.
The crossguard is puzzling, compared to a number of Tulwars I own, it is dimensionally 'accurate', and the way the original knucklebow connected to the crossguard (ie the cast shape at the 'junction' where 'bow' and guard meet) is identical. I still have been unable to find similar swords (with or without the knucklebow) ... the 'cable' design is probably a clue...but I have no idea as to the significance, if any .
I do feel that late 19th C is likely for this sword, and, finding info on 'WHITES'
has been fruit-less so I cannot be certain.
Regards David