This is a British/Commonwealth Infantry Sword, specifically made for officers of Volunteer Rifle units.

The Wilkinson-style wedge-shaped blade indicates post-1846 manufacture, while the hilt pattern indicates pre-1890 manufacture. This narrows it to an approximate window of manufacture of some 44 years in the 19th century.

The hilt is of a sheet-steel design with hanging Infantry horn pierced into the 1/2 basket guard, rolled upper finial. Fish-skin grip, 7 turns of 3-piece brass wire wrap. Original sword knot is attached to the hilt.

The ~32-3/4" blade is etched on both sides with a floral motif; crown over VR; maker on this example - Woods & Son, London; opposite, hanging Infantry horn, sandwiched between Volunteer Rifles; this example may be traceable to the original owner as it bears a badge with motto DEO NON FORTUNA above a hart standing on a patch of grass, on all four legs showing, head raised; below, the initials F E G.
According to the College of Heralds, London, unofficial records indicate this motto (so spelled DEO NON FORTUNAE) was assigned to a family by the name of Gardiner. It is very possible this sword was once the property of a F. E. Gardiner, officer in a yet to be identified Rifle Volunteers brigade.