Hi Bill,
You don't specify whether you're looking for a Type 1 Navy holster, designed to be attached to a stock and worn on a shoulder strap, or a Type 2 that's worn on a belt. Here's a reasonably authentic looking Type 2 from India that's currently running on Ebay.
Regards, Norm
https://www.ebay.com/itm/REPRO-WWII-...kAAOSwEHhaojR1