There were 2 of Lilian's boutiques in town in 1973 - the one in Panmure Street specializing in French perfume, and the other in Whitehall Crescent that stocked Mary Quant designs.
To give you a reminder of the kind of fashion that was on the go in 1973, below is a news item featuring the latest creations on show in Paris that year.
I'm not particularly impressed with what's on offer in the Paris collection mind you. Most of it looks a bit on the corny side to me.
Even the hot-pants don't look anything like the proper ones the girls on Top Of The Pops used to wear.