Not all Purdey’s were auto-openers, but many were. The holy grail is really a holy triumvirate. Boss-Purdey-Holland. Hardcore collectors often add equally or rarer guns to that “Best of best grade” that includes Woodward, Dickson, MacNaughton, Westley, Rigby, Grant, Lang, and Atkin to the mix.
Some of the less known guns are their equals so you’ll find closeted, top-secret collectors of Edwinson Green, Harkom, Mortimer, and others that output some pretty fantastic best-grade stuff that is really undervalued.
If simplicity is the measure of what is extraordinary, the best there ever was is probably Dickson and MacNaughton. Their designs for 5lb to 6lb game guns have been copied and enhanced to handle 11lb competition guns of today. They designed the trigger-plate action. Plenty of wood left for strength, all maintenance happens on the trigger plate where the entire action sits. The “box” is nothing but an inert shell.
Going off the path a bit here, but I had the privilege to hold a few dicksons recently including 7/8ths of all the 28 bore dicksons ever made sitting in front of me at one time. Truly, truly, incredible guns. And honestly, pretty cheap for what they are. Best guns for $15,000-$45,000 made in a finite amount, about 1600 made over 200 years.