Hi Richard,
Based on my observations, I believe this could be a Bikaner, India armory stamp. I’m not 100% sure, but the marking style appears to be the same. I can assist with translating as well; on the spine, it reads "karigar," which means "maker," though I couldn’t make out the rest due to rust. The numbering on the blade is "x34" (the "x" is unknown). It seems to resemble a Kilji-style tulwar.
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