Strictly in the interests of research............. ....
In the scene where George Smiley goes to see Toby Esterhase at his gallery at what some people call the naughty end of Bond Street, the conversation takes place in a basement room where they will not be overheard. Smiley presses Toby as to the whereabouts of Claus Kretzschmar's night club, the Blaeu Diamant. After further obfuscation, Toby reveals its location reluctantly. (all this was in 1982).
Readers of these columns will be surprised and interested to learn that the resources of British Intelligence have been brought to bear upon this delicate subject, and I can reveal the present-day whereabouts of this delightful venue (unattributively, of course). However, I must stress that those amongst you of a nervous disposition should proceed NO FURTHER.
The following link in translation for your convenience is as follows:-
(paste this extremely long link into your browser)
http://translate.google.co.uk/translate?hl=en&sl=de&u=http://www.geizhaus.com/&ei=WZDwScnjFqDUjAexmr3EDA&sa=X&oi=translate&resnum=1&ct=result&prev=/search%3Fq%3DGuizHaus%26hl%3Den%26client%3Dfirefox-a%26channel%3Ds%26rls%3Dorg.mozilla:en-GB:official%26hs%3D0e1%26sa%3DG
P.S. Once you have perused the contents, I will take a straw pole. Kaptn.Ahab wishes to make it known that she has absolutely no connection with the mythical Great White Whale whatsoever……