DAME DIANA RIGG ON A LOCATION SHOOT FOR A NEW SERIES OF "THE AVENGERS". HERE SHE IS ON THE MINIATURE RAILWAY ON LORD GRETTON'S STAPLEFORD PARK ESTATE NEAR MELTON MOWBRAY, LEICESTERSHIRE FOR THE EPISODE "THE GRAVEDIGGERS" Diana Rigg on a location shoot for a new series of "The Avengers" in Leicestershire, .