I believe he is also Holt's US agent.
I was also looking at another gun and I too now believe that is the purpose of the tiny leaves.

I will break it down and look at all the markings when it arrives.

I am a big 16 gauge fan. I absolutely don't need anymore shotguns at my age, but a 6# 16 with tight chokes and a crossbolt action putting the weight in the center of the gun just screamed dove season to me.