Research letter for a Reproduction?

[Darrell Jervey]

Hey all, I am a proud new Forum and PGCA member. I introduced myself over in the new member section and provided a few pictures of my, new to me, guns. I am thrilled and a bit stunned that these came my way, but hope to be a good steward for them.
I just printed and was going to request 2 research letters for my 2 older guns, and was wondering if there is any benefit to a research letter for my 28ga DHE reproduction gun?
I searched the forums and did not find any information on this. TIA
I look forward to learning and enjoying these works or art. I will use them all if they are up to it.

Thanks, Darrell