New Member to PGCA - Could use some help

[Brian Estano]

Good Morning,

I've stumbled across an old 1890 Grade 1 Parker Bros Shotgun Serial #62,046. I need to source a stock and barrel for this firearm, as the barrel was cut and the stock trimmed. I am looking to restore the firearm as closely as possible to the original manufacturer specifications.

It is either "N" or "M". Can't quite make it out.

Frame Size 3, 12 guage, with a "T" in a circle & 5lb 12oz stamped underneath.

The rib on the barrel just says "Parker Bros Makers. Meriden CONN. U.S.A.

The questions I have are:
-What kind of barrel do you think this firearm came with?
-Do I need to find a barrel off of a frame size 3 or can I use a barrel off of a frame size 2 with this receiver?
-Are stocks for the most part, interchangeable with minimum smithing?

Thank you for your help.