Take sheep across Southwark Bridge
ianvisits.co.uk
ianvisits.co.uk
"In some countries, such as the United States, an ornamental key – the ‘key to the city’ – is presented to esteemed visitors, residents, or others whom the city wishes to honour. This practice is a variation on the freedom of the city tradition, and has a similar symbolic meaning; evoking medieval walled cities, the gates of which would be guarded during the day and locked at night, the key symbolises the freedom of the recipient to enter and leave the city at will, as a trusted friend of city residents."
tl;dr basically an award you can be given by the government of the City of London
"Whilst undoubtedly a privilege, strict instructions are given that the Freedom of the City of London should not be presented to others as being an honour or award."
https://en.wikipedia.org/wiki/Livery_company#Precedence
I mean, way above the Worshipful Company of Educators (109) and the Worshipful Company of Security Professionals (108) -- and rightly so! -- but rather below the Girdlers (23), Dyers (13), and Brewers (14).
Finally, finally a precedence table that follows the Principle of Least Surprise.