No one stepping up to the plate yet? I'll take a guess (no expert here). The style is similar to German hirschfangers of the period, especially in the form of the wood grip with 3 brass 'buttons' for a grip, HOWEVER, this piece resembles more of a utilitarian-type sword, such as a machete. I know Collins & Co made similar (read slightly similar) machetes for the Latin Amer and S Amer markets during the period of this sword, mid-19th. The form of the grips, two wood (?) slats with a flattened tang sandwiched in between, is also very similar in style to Span colonial espadas, perhaps a mimic for the market?
I see some similarities with Danish swords also, to swing things in the other direction. I'm afraid it is easier to say what this sword is not vs what it truly is.
Now, where are those blasted experts-