b'44343343** 1979 20c Australia Day, positional block of 20 (4x5) from left sheet, first vertical row showingMisplaced perforations BW:832b, Cat. $600 [Only 2 sheets recorded with this variety] .$300400344344** 1980 22c Stamp Week, lower left corner se-tenant strip of 5, variety Imperforate between stamp and margin at left, BW:874a, Cat. $2000. $1,0001,200'