I bought the book then I bought the gun. Thank you Walt Snyder.
I picked up a scarce little NID in the very desirable 28 gauge.
Flaking and peeling Shellac finish has been replaced by Tru-oil.
There's enough degradation on forend iron and barrels that lead me to believe the metal surfaces are original.
Original butt plate and 3/4" period Hawkins pad interchange on a whim.
Barrels are factory bore diameter of .549 and.550. Choked .013/.007.
Minimum barrel wall thickness of .026 /.027.
One feature escapes me. Cocking indicates, really??