Copyright 2003 Robert R Prechter Jr.
Pages 18 & 19
The drawings I've added to this chart are directly pulled from page 19 of the book mentioned. The original charts referenced are the DJIA from 8/24/1921 to 09/03/1929, and the second chart in the comparison is the DJIA from 12/06/1974 to 01/14/2000. The similarities are many.
The reason why I took interest in this chart is because I noticed a huge boom in social media marketing by Herbalife distributors, pushing their products and heavily recruiting new customers and new distributors. The chart immediately reminded me of the so I decided to compare. It looks good and I am assuming a long to somewhere near the $80 - $85 range. I don't want to get too specific but I expect the final waves (4 & 5) to end sometime near the end of 2019, roughly 12 months from now.