Stop in for a cup of coffee

I always thought the electric washer came with the 3 speed wipers as a package. I don’t recall ever seeing one without the other.
Looking at some of the stuff at Hamtramck Historical, for at a few years, like '70, the electric washer came with the variable speed wiper option as a package.
1970 Ordering info:
P5.jpg

Yet in the Dealer Guide for '69 Barracuda, both types of washers are listed as standard; Maybe buyer's preference???
69_Barracuda0024.jpg

Price book shows the variable speed wiper with electric washer both in the AO5 package and as its own $10 option.
The 1970 Hamtramck Registry - 1969 Plymouth Salesman's Pocket Guide

Dealer Data Book 1970 valiant & Duster, same deal?
70_Valiant_Duster0008.jpg