After reviewing the revolver closer, it does have the same serial number on the back of the cylinder. No identification maeks on the butt of the gun, just leaf engraving.
Thanks everyone for providing great information and leads to the engraver and possible history. I will share this with my father-in-law and recheck this weekend for any other clues in the engraving not shown in the photos.
My Father-in-law has a heavily engraved revolver with perl stock grips. Engraving exists on barrel, cylynder. It is a 38 CTG (note a 38 special as noted in this thead's title.)
The serial number on the barrel is V 673362 P
Another set of numbers are located on the inside of the crane.
4
318...