As Andy sez, it's a chariot plane. They had a brief heyday around the turn of the 19thC and faded from the catalogues after about 1920. In essence, they are a slightly fancy versiom of a metal block plane.
I'd venture a guess that that what you have there is a user-finished casting. At least up 'til WW2 you could buy several types of cast bodies to finish at home, including smoothers, mitre planes & chariots. That would explain the tizzied-up bridge, but it strikes me that the engraving on the bridge looks like it's of a better standard than the rest of the job. As has been noted, the mouth is a mess, and will be a limiting factor if yiu want to get the best out of it. It may have been a better job when originally fvinished, but fell on hard times subsequently. Those cup-head screws sticking out of the body are crying out for counter-sunk replacements!
It looks like it could be brought up to a decent standard, the savaged toe-plate would be easy to replace. You could possibly cut those long projections on each side back, & elongate the screw holes so the toe-piece can be moved back, but making a new piece from scratch would be easier, methinks. The bed might need some serious file-work to get it flat, too, if the rest of the finish-work is anything to go by.
The chariot style has always appealed to me from the first time I saw one illustrated in a book, but they are almost as rare as feathered frogs down my way & I never found a good 'user' at a price I could afford so I eventually made my own.
The majority of chariots were "bull-nosed" & partly because its construction seemed easier, the first one I made is bull-nozed:
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It's handy, but that short toe limits its versatility so I made another with a toe that is more like 1/4 the length of the sole & extends forward like a mitre plane. It was a bit more demanding to make because the sole has to be split & re-joined to achieve the desirable fine mouth, but it's altogether more handy. I've since retired both my block planes because I found myself always reaching for this one instead:
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As I said, it's really just a block-plane, but a bit more elegant (or so I think) and mine is certainly much nicer to use...
Cheers,
Ian