I agree with Vandoo. It looks like both blades were treated with a powerful cleaner to remove rust. The first blade appears older but as Vandoo mentioned the fittings are new. It looks like someone used lost wax casting using a copper alloy for the stirrup.
The second blade is mid 20thC & a lot of those blades were made with recycled steel, this one had a lot of deep rust, leaving the major pits. The scabbard once had MOP or turtle shell, now missing.
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