What PHB weapon would be closest to a Patta (Gauntlet Sword)?

I found an image of various historical weapons and one caught my eye. It is a Patta from India between the 15th and 18th centuries. It is between 10 and 44 inches in length and is a slashing weapon. Obviously based on the construction it would be a one handed weapon and would not have the option of being versatile. I’m thinking it would be closest to a short sword but i’m not sure. What weapon from the PHB would this be closest to for determining damage die and weight. Would this also count as an exotic weapon for things like the gladiator background?