yeah pretty close. my 1960 Lesley & Roberts tailcoat tux was from 16 st george st. hanover sq so they were next door neighbors it would seem. L&R was definitely in the SR club even then and in fact would relocate to the row sometime later (they're still there today iirc).
that piece was amazing. i've copped other more recent SR but i doubt i'll see anything like that pop up again. the 60s-70s pieces are the ones to find, imo.