To me, based on the limited view from the photos, this doesn't look like a mass produced instrument. To me, it looks like an individual made this; a custom build.
Musser, Deagan and others always stamp one of the bars. With no stamp or marking in the frame, I have my doubts about being a mass produced instrument.
Other clues, the way the bars are shaved, the wood posts used to suspend the bars, the look of the resonators (appears more modern), etc.
This almost looks like a xylorimba. I'd have to see it in person, hear it, at the very least see a lot more close-up photos and perhaps some audio examples.