18th Century Scottish basket hilt with cavalry saber blade
 

This basket hilt appears to be one of the military form produced by Nathaniel Jeffries in London around 1750-1760 to infantry privates, and most notably to the 42nd Highlanders ('Black Watch'). While it seems these were also produced by Drury there as well, it is unclear which actually produced this one as it does not have the original blade.
Also, there are no apparent issue marks on the hilt.

It would be plausible that this sword was in use from 1750 to 1770s when these ceased being issued to infantry. What is intriguing with this example is that it had its working life extended with being remounted with a M1788 British light cavalry blade. The cross section of the blade is 'montmorency' style which suggests a blade by James Wooley of Birmingham who favored this form in his 1788 blades, but this seems a bit heavier and unmarked.

It seems unusual to see a curved cavalry blade mounted in an otherwise 'infantry' basket hilt, but I have seen one other like this about 30 years ago. This one was an acquisition in late 70s.

Would appreciate any thoughts or if anyone else has seen one of these c. 1750 London military basket hilts with cavalry blade.

Not sure if this helps but these hilts were in use through the American Revolution.

Absolutely!!! and the numbers of these and European swords dating even into the previous century as well. The 1973 book by George Neumann "Swords and Blades of the American Revolution" is a virtual catalog of all of these and has become essential for the study of European and American swords of these times.

Actually the 42nd Highlanders (Black Watch) had these very hilts at Boston in 1776 but ceased carrying them. However these were also in use by various infantry units.
What is remarkable on this one is that it was later mounted with this 1788 light cavalry blade so hard to say where it went after that modification.

Thank you so much for answering, I was hoping for response. :)

Saw one at the Great Western show eons ago. The one I saw looked composite.

--ElJay

So Jim are you saying that this blade is older than the basket?

No, actually much 'newer', it is a M1788 light cavalry saber blade, which were being made in Birmingham by Thomas Gill and James Wooley, but this one is unmarked. At the time there was considerable friction in the industry (mostly initiated by Thomas Gill) about the ever present dominance of German blades in British swords. With this these makers push to present the quality of thier blades, they distinctly marked them, even to the level of such pronouncement with 'warranted' marked on them. I think Samuel Harvey also made blades.

The hilt is a munitions grade style made in London by Jeffries around 1757, and these were mounted typically with German made straight backsword blades for use by the British army, usually infantry.

It seems this hilt was remounted for use, probably by a 'flank company',
using a M1788 cavalry blade, in circumstances unknown, but flank companies tended to favor curved saber blades on swords used by them.

To add to the previous post on these distinctly 'English' hilts:
From "Scottish Swords from the Battlefield at Culloden", by Andrew Mowbray (1971) which is a summarized version of the very rare (1894) work written by Lord Archibald Campbell, who had acquired some 137 of the 192 swords collected on that battlefield in 1746.

p.11:
"...around 1740, Drury, Jeffries, Harvey and possibly others accepted contracts from the English government to produce swords of the Highland pattern. These smiths produced a cheap but quite serviceable basket hilted sword to arm Scottish regiments in English service along with certain Highland companies then being raised".
(these were a rough approximation of 'Glasgow' style and two of them were among the Culloden group).

"...This Birmingham sword of the 1740s was produced in considerable quantities, certainly enough to arm a few regiments, yet, paradoxically it is quite rare.
Many of this crude but most important and desirable type that have come down to us show evidences of fire or other rough treatment and it may be that the bulk of these swords suffered just such a common fate while iin storage in some arsenal or castle following their obsolescence as tactical fighting weapons for Highland troops".

It would seem that, as noted in this reference some years ago by a most esteemed collector and author gives us some key perspective on how this sword might have come to being remounted as in its present state.

This 'rarity' of certain pattern swords with several models occurred in the 19th century due to fire, one in the Tower of London armouries (I think it was the M1829 heavy cavalry troopers sword).