Well . . .there was a lot of uncertainty. Both parties were unsure if the other was LE. Sometimes this was quite a little dance.
The yellow pages had catagories for Entertainment, Performers, Adult Entertainment or, in larger cities, a frank listing for Escorts. You never saw a picture of the provider in advance.
Listings for Agencies and "Massage Parlors" were a good bet for BCD action, and of course there was less doubt about a SW (and you could see her first . . .but . . .).
With ASPD and now ECCIE, P411 and others, there is not only little doubt, but you know what the provider actually looks like.
Yeah—there is no such thing as "The Good Old Days"!