Please forgive my ignorance but I have a couple basic questions about engraved nickel plated revolvers

At the factory were the revolvers engraved and then plated?

If the engraving was third party (i.e. New York) were the guns shipped plated and then engraved? Or were they shipped sans plating (in the white)?

If they were shipped plated was the plating removed, the gun engraved, and the gun replated?