I found this in a shed under the floorboards in Brisbane, Australia. Looks like a USA type trench knife but I can not find photos of this "thin handle" type.

The name has letters before the rust not visible in the photos. Looks very much like LOUiSIANA MO which does not make sense to me unless LOUISIANA was a maker or there is a town in MO called LOUISIANA. Any ideas?

Identification is rusted but it seems there may be enough for someone to tell me who made it, what it is and date.Click image for larger version. 

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