FWIW The first high grade 16-gauge I've recorded is 110475 an EEO-Grade with full pistol grip, 28-inch barrels and a Silvers pad which sold in the June 2003 Bonhams Auction. Then three E quality guns in the 112xxx range.
EEO-Grade 112429 with full pistol grip and 30-inch barrels sold by Tommy Guns on Guns International in 2018. EE-Grade 112829 with 28-inch Peiper P. barrels, half-pistol grip and heel & toe plates --
sold in the last Julia's Auction, March 2018, for $34,500.
EE-Grade 112990 with 30-inch Peiper P. barrels, half-pistol grip and heel & toe plates --
The extra 28-inch barrels are Oxford 4. S. J.
Hopefully in the future when we see it restored it won't have blued screws!!