Gareth Hunt and Joanna Lumley at the Dorchester Hotel photocall introducing them as Steed's new partners. Taken March 8, 1976

Gareth Hunt and Joanna Lumley at the Dorchester Hotel photocall introducing them as Steed's new partners. Taken March 8, 1976

Gareth Hunt and Joanna Lumley at the Dorchester Hotel photocall introducing them as Steed's new partners. Taken March 8, 1976

Gareth Hunt and Joanna Lumley at the Dorchester Hotel photocall introducing them as Steed's new partners. Taken March 8, 1976

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Gareth Hunt and Joanna Lumley at the Dorchester Hotel photocall introducing them as Steed's new partners. Taken March 8, 1976

Gareth Hunt and Joanna Lumley at the Dorchester Hotel photocall introducing them as Steed's new partners. Taken March 8, 1976

Gareth Hunt and Joanna Lumley at the Dorchester Hotel photocall introducing them as Steed's new partners. Taken March 8, 1976

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The cast photographed in Paris on March 25, 1976

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Gareth and Joanna photographed in Paris on March 25, 1976

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Gareth and Joanna photographed in Paris on March 25, 1976

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Gareth and Joanna photographed in Paris on March 25, 1976

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Filmed but unused opening title sequence

Filmed but unused opening title sequence

Season one publicity photo

Season one publicity photo

Season one publicity photo

Season one publicity photo

Season one publicity photo

Two Spanish trading cards

Season one publicity shot

The cast pose with participants in the Purdey lookalike competition in April 1977

Gareth Hunt and Joanna Lumley pose with participants in the Purdey lookalike competition in April 1977

The cast in New York to promote the series in late June 1976

Gareth Hunt and Joanna Lumley return from San Francisco after promoting the series in the US on June 29, 1976

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Gareth Hunt and Joanna Lumley return from San Francisco after promoting the series in the US on June 29, 1976

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The cast photographed at Pinewood Studios on July 12, 1976

The cast photographed at Pinewood Studios on July 12, 1976

The cast photographed at Pinewood Studios on July 12, 1976

The cast photographed at Pinewood Studios on September 21, 1976

The cast photographed at Pinewood Studios on October 12, 1976

The cast photographed at Pinewood Studios on October 12, 1976

The cast photographed at Pinewood Studios on October 12, 1976

The cast photographed at Pinewood Studios on October 12, 1976

The cast photographed at Pinewood Studios on October 12, 1976

The cast photographed at Pinewood Studios on October 12, 1976

Cat Amongst the Pigeons and Tale of the Big Why publicity shots

Undated photo from the TV Times Souvenir Special. Possibly taken during the filming of Tale of the Big Why

Season two publicity shot taken by Lord Lichfield on May 12, 1977

Season two publicity shot taken by Lord Lichfield on May 12, 1977

Season two publicity shot taken by Lord Lichfield on May 12, 1977

The cast during the filming of K is for Kill in France

The cast during the filming of K is for Kill in France

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The cast in Paris in 1977

The cast during the filming of Complex in August 1977

The cast in Canada in 1977

Gareth Hunt and Joanna Lumley on the streets of London selling flags in aid of Mental Health Week on May 10, 1978

Gareth Hunt, Honor Blackman, and Patrick Macnee on Vintage Quiz on October 17, 1983

Patrick Macnee and Joanna Lumley in the TV series Nancherrow

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