Harry and I are equally exhausted from doing very little today
Officer and lower ranks (I think the man in the middle might be a sergeant) of the Swiss guards regiment commanded by Colonel Jaccaud (also spelled Iacaud), later by Colonel Bavois, in the service of Francesco III d’Este, Duke of Modena.
The date at the bottom right of the image is slightly off the mark, as this regiment was raised in 1742.
Curved, single -and false-edged blade, wide fuller, featuring remains of blueing (in patina), with gilt engravings at the forte, atrophy surmounting a cartouche with motto “Vivat Husar”, the effigy of a Hussar on horseback and remains of other engravings at the base, with remains of gilding; brass hilt, elongated and ribbed langets, straight parry quillon, grooved guard; long, smooth and outlined cap; checkered and outlined, ebony grip. Brass scabbard with two rings.