OK so I have added pics to the shared album in my original post, I can't figure out how to post them on here, I may not have enough posts. It's hard to photograph this gun due to the holographic type pattern on it. Here is what I'm seeing, forgive my ignorance on specific parts, I'm new to the high end shotgun world:

Receiver left side:
63825 - I'm assuming serial no
VB over a G in a triangle, with a leaf on top, I understand this to be the Vincenzo Bernardelli stamp
S.A. Vincenzo Bernardelli
There is also some kind of Y facing right

Receiver right side:
Gardone V.T. (Brescia)Italia
The 3 symbols and a number - you can see these pretty clear in my picture
First symbol is some kind of crossing swords
2nd is PSF with a star above it
3rd is a little worn off, looks like FINITO with a star on top
Number is 521

521 is also stamped under triggers

Barrel left side on silver part:
XXIII / 63825 / 12
Barrel left side on black part:
VB with a star
Barrel right side on silver part:
Vincenzo Bernardelli Gardone V.T.
Same three emblems as above (crossing swords, PSF, and VBG in triangle) / a larger Y / 521 / 12
Barrel right side on black part:
B4 12 with 3 stars

I'd love to know: 1) what model I have, 2) what year this was made, 3) what chokes are set up on this gun, and 4) what size shell I should use in it, as I'm going to use it on Sunday.

Any help you can provide would be great, I'm hoping I might have helped a little as well. I can post more pics if needed.