Help replacing gas valve/key

I am going to get my fireplace redone soon and wanted to check the gas valve and install a flange since it didn't have one. My home was built in 1971. checked and there aren't any leaks so don't plan on replacing the valve itself. All fireplace gas valves and flanges today are threaded on the market. Does anyone know what valve this is so can exactly pinpoint what flange to search for/ buy?