pushing the limits a bit, the brits issued this 'knife' to the riflemen in the early 19c. the enlisted riflemen (think 'richard sharpe'). they were not allowed to carry swords, these were thus not swords, so they must be knives.
- much later the enlisted 'rifles' were issued with 'sword bayonets' to get around the social definitions. the later ones were straight, had attachments for putting it on the end of a rifle and were not well liked as bayonets. the 'bayonets' were also issued to pioneers and also not well liked. the saw teeth were functional but just barely. some were issued to naval forces as cutlasses. also not well liked. the straight ones used in the TV series were well after the napoleonic wars, they would have looked more like this 1831 nodel. the original 'baker' rifle bayonets go for a small fortune.
the straight 1856 one:
(both these are not mine, by the way)
...moving along, some bright spark who liked his curvy one bought it at auction after it reached the end of it's official life and 'repurposed' it for use in a later conflict. it has the official double broad arrow stamp for the 'out of service' sale, as does the straight 1856 one above.
i came across it at an antique dealer's auction here a few weeks ago. it wanted to come live with me.
blade is 55 cm. long (22in.) , 4.5 cm. wide at the guard, 6 mm. thick & distal tapered. the 20cm. 'yelman' (the top sharpened area of the spine ahead of the saw teeth) is razor sharp, as is the blade almost to the guard. guard is 1.2cm. thick brass, carved to match the grip. pommel cap is held by 4 small brass screws with crossed heads. grip is 16cm. from guard to end of pommel. it's 4.2cm dia. at the guard, getting larger near the pommel. the 'saw' part is VERY sharp and the teeth are 'set' properly like a real hand saw, not just notches. blade is pitted, but has been polished and no active rust present. weight sans scabbard is 820gm. no other mark than the double arrow mark, the
x just ahead of the guard disk.
scabbard is wood, covered in what looks like vellum, or thin calfskin, light color, a bit grimey. very well done. brass chape is well made as well. small holes are on the scabbard's spine near the mouth and further down where suspension ring mounts would once have been.
so, not a bayonet, no longer a pioneer or rifleman's sword bayonet, too heavy for a 'machete' it must be a combat 'fighting' knife.
i suspect some brit ossifer chopped his way thru SE Asia at some point, possibly a chindit in burmah, or some other clime or era where it was thought useful.
thus endith the lesson.