The ancient re-enactment is organised by the Worshipful Company of Woolmen as part of the annual Wool Fair.
Bill Clark, past master of the Worshipful Company of Woolmen, said: "Driving sheep over London Bridge by Freemen of the City is a tradition rooted in more than 800 years of the history of the Woolmen.
Adam was presented with the award - a silver medal and a cheque for PS500 - by John Brewer, master of the Worshipful Company of Woolmen at its annual civic dinner.
The Lord Barnby prize is awarded on behalf of the Worshipful Company of Woolmen by the Textile Centre of Excellence.
Yesterday also saw the Worshipful Company of
Woolmen shearing competition and the parade of beef cattle, commentated on by show president Dai Lewis.
It will be her first visit since 1994 when she attended in her capacity as Master of the Worshipful Company of
Woolmen and spent part of her time at the showground watching the world sheep-shearing championships which were being hosted at the show for the first time.
Windsor Bill Clark, past Master of the Worshipful Company of
Woolmen, said: "It's a tradition rooted in more than 800 years of history."
Bill Skidmore, 70, has been presented with a Silver Woolsack trophy for his commitment to the Worshipful Company of Woolmen. The presentation took place in the City at the Worshipful Company of Woolmen's annual installation dinner for its new master.
The Worshipful Company of Woolmen's stand, in association with the Woolmark Company, showed the progression of wool direct from a sheep's back into clothes, upholstery fabric and carpets.
The visit on the opening day (July 22) of the four day show - which runs from July 22 to 25 at Builth Wells - will be her first since 1994 when she attended in her capacity as Master of the Worshipful Company of
Woolmen.
The event was organised by the Worshipful Company of
Woolmen, one of 109 Liveries in the capital, to raise money for the Lord Mayor's appeal and the company''s own charitable trust.
The 800-year-old Worshipful Company of
Woolmen has agreed to sponsor the textile courses to the tune of pounds 3,600 a year.