Believe me after a plane has been in action and it's instuments have been through the Instuments shop, you might find a gage that came out of a PBY or from a N3-N.
The only time you'll find matching instuments is when it comes off Grumman's assembly line.
But even after the plane goes through Navy's A&R depot the instuments are a mish-mash. Just as long as they work.