Found this online might be of interest.
ref:

Linky Link

Did some searching online, found one (like the top) sold as a Swedish NCO's cutlass, with infantry badge on the bell. Comment was also there, 'this is a very rare sword, you'll likely never see another for sale anywhere.' sale was a few years back.

Found another, in a local (French) auction on Friday night, in a lot with a couple other items, blade pitted, Anchor on the bell guard, no crown on the anchor. broken scabbard that it did not fit into. almost went for it, but didn't want to mess with the scabbard. Also didn't want the other bits & high postage.

Found a third one (you wait and wait for a bus, then three come along together -or when it rains, it pours.) not much more than the other, but in a bit better shape, marked E. SVALLING (over) ESKILSTUNA on the blade root and has anchor on bell guard,with a crown, and a twisted brass wire wound leather covered grip w/o rivets. Acceptance mark on the end flat of the upper guard piece. Went for that one. Comes with a good scabbard, brass fittings for a vertical carry, brown leather cover. Looks later or more 'Officer-ish' than the above. Pics to follow.

It seems as if almost the same 'knife' was tried for the Danish army - see Danske Blankvåben p. 164. But only a few copies were made - now in the Toejhusmuseum in Copenhagen.

:) Interesting. Any picture of the Danske one?

Thanks to all for the new information!

New 'Swedish Sword' (Cutlass?) Photos from vendor:

Here is a picture of the Danish one from 1849.

Cool. Thanks. The saw attachment looks a bit unusual, I suspect it was well loved (¡⊥ON) by any troops that were conned into using it. Maybe it was why it was not mass produced. :D

Does look like the One I posted earlier that appeared to be a phoney Danish one, but with a better guard the only noticeable difference. Maybe it was really a rare prototype? :shrug:

I received this Swedish naval NCO's sword today (pictured next to the M1851 cutlass I already had). I'm seeing some confusion about what to call this pattern. As far as I can tell it is identical to the infantry M1842, except for the anchor on the hilt, but during a search I've found various sources of information that call it M1842, M1843, and M1851, and the person selling it even named it M1820! So how do I index this? Does anyone have more reliable information about this specific model?

On a side note, having handled the M1893 cavalry sword and the M1851, I thought this one would be another beastly Swedish sword, but it is surprisingly light in the hand in comparison to the M1851 cutlass!