Sherlock Holmes Society of London: "Advising Government" - The print shows the Home and Colonial Offices in Parliament Street
Sherlock Holmes Society of London: Besides his posts at King's College, London, Dr Blick is Director of History & Policy, a UK-wide initiative, led from KCL & the University of Cambridge
Sherlock Holmes Society of London: The Foreign Office as Mycroft Holmes knew it
Sherlock Holmes Society of London: The Home Office then was much handsomer than the present block in Marsham Street
Sherlock Holmes Society of London: The Treasury building has changed rather since Mycroft's time
Sherlock Holmes Society of London: Until 1906 the War Office was located in Cumberland House, Pall Mall - convenient for the Diogenes Club and Mycroft's lodgings
Sherlock Holmes Society of London: Mycroft Holmes would certainly recognise the former Admiralty building in Whitehall
Sherlock Holmes Society of London: Mycroft's successors include Sir Humphrey Appleby in "Yes, Minister" and Malcolm Tucker in "The Thick of It". (O tempora! O mores!)