I wish I could provide a more definitive answer, but for some reason the words "India" and "Jim McDougall" come to mind...
The cant of the hilt relative to the axis of the blade reminds me more of some Prussian/German late-19th century patterns than it does any corresponding British pattern infantry sword (Mole produced blades under contract for the crown for quite some time). Furthermore, as far as I can see, all the late, straight-bladed British patterns had a single, wide fuller, as opposed to the small, narrow fuller as shown in your example. Lastly, that funky, two-bar hilt doesn't resonate in the slightest (somebody needs to turn on the giant, Winnebago-shaped spotlight
)...
So, I guess I'm going to go with either a) an offshore contract or repurposed blade for a commonwealth (most likely India IMO), or b) a later Indian-made non-reg pattern, Frankenblade, or repro fantasy piece.
