What Is This Flag?

[patches]

This is as you'll guess a Screen Catch from the movie The Sand Pebbles, Holman boards the boat's "Motorpan" after the terrible incident in town (Finds his shipmate and  buddy Frenchie died from sickness, gets beaten up by Reds, and Frenchie's wife gets murdered by the Reds).

 

This White Flag with what looks like Blue cloverleaf type devices, like the Army's 88th Infantry Division Shoulder Patch, is this a real Navy Flag, never seen it before???

 

[tdurbinmas]

It’s a signal flag. The NATO zero flag. 

[29navy]

Even though NATO wouldn't exist for another 26 years, it's still a a number Zero flag.

[patches]

So a goof then huh?

[Salvage Sailor]

Nope, USN Zero flag

 

[US82Bravo]

From the sixth edition  of "THE BLUEJACKETS' MANUAL" -

 

 

 

 

Larry

[patches]

So would this be accurate in the movie as a Jack on this small boat?