Premium pair of 1979 Australian 20 dollar banknotes signed Knight and Stone, professionally graded PCGS Superb Gem UNC 67. This consecutive serial number pair displays exceptional eye appeal, crisp paper quality and outstanding originality. High grade consecutive examples are scarce and highly sought after by collectors of Australian decimal banknotes. Housed in PCGS Gold Shield holders for long term protection and guaranteed authenticity. Located in Perth Western Australia and shipping Australia wide from a trusted bullion and numismatics dealer.