A Centenary Test first day cover stamped envelope, signed by Don Bradman, the 9 by 16cm white envelope to celebrate the 1980 Centenary Test Match betw

A Centenary Test first day cover stamped envelope, signed by Don Bradman, the 9 by 16cm white envelope to celebrate the 1980 Centenary Test Match between England and Australia bearing a Colorado ''silk'' cachet illustration of three old-time cricketers, a 17.5p commemorative stamp with an 1880-1980 Centenary Tour kangaroo and lion logo and postmark of LORD'S 18 OCT 80, signed in pen by legendary Australian cricketer Don Bradman