This one is straight from Japan!
日本ビクター JVC ロゴのバックル、経年による汚れが多少ありますのでご了承ください。
page.auctions.yahoo.co.jp
As I said, it is understood to have belonged to the head of JVC, Big Boss Tanaka. He wore it when he approved product design and when he green lit production forecasts for the PC-5, PC-7, RC-M90, PC-55...to name a few.
