After 1929, it took 25 years to return to its 1929 peak, which iflation-adjusting would make a bit longer than 25 years. Then again surviving stocks in the 1930s paid not-too-bad dividends so that actual returns assuming dividen reinvestment prob meant "only" about a 15-year timeframe to earn back the losses.
Very interesting. Thanks for posting & for the ping. BTTT!