Firms struggled after WWI. Tens of thousands of customers never returned. Worse after WWII when more died and many large Estates were sold off because the nation was just about broke.

Quality has always been available to those who were willing and able to afford it. I personally like the guns made in the 1880-1890s for style, design and workmanship. I still have a unfilled desire for a side lever Grant double from that period.