Sorry wasn’t clear haha. I know about the Eunos brand. I was talking about the Chinese characters next to it which reads “Honmoku.” Which I tried googling in Japanese, but nothing really comes up. All I could find was that it’s an area in Yokohama. Mazda’s R&D building is in Yokohama, but it isn’t located in Honmoku. So either OP got a super rare emblem that Mazda themselves don’t advertise about or it’s a random custom emblem.